Use macos-12 runner for x64 macOS jobs (#9801)

GitHub made arm64 runners generally available and changed macos-latest label to point to them.
The runner architecture is coupled with GH-hosted runners OS version: macos-13 is the last one to run on x64.

This PR essentially brings back the previous behavior, by explicitly requesting that all our x64 macOS jobs are run on macos-12 (as was before). 
We should eventually migrate to macos-13 for x64 macOS and macos-14/macos-latest for arm64 macOS. However, this leads to issues with `npm install` getting stuck, so it should be probably reattempted after the CI rework.

.github/workflows/engine-nightly.yml

@@ -107,7 +107,7 @@ jobs:
   enso-build-ci-gen-job-ci-check-backend-graal-vm-ce-macos-x86_64:
     name: Engine (GraalVM CE) (macos, x86_64)
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
@@ -354,7 +354,7 @@ jobs:
   enso-build-ci-gen-job-jvm-tests-graal-vm-ce-macos-x86_64:
     name: JVM Tests (GraalVM CE) (macos, x86_64)
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
@@ -640,7 +640,7 @@ jobs:
   enso-build-ci-gen-job-standard-library-tests-graal-vm-ce-macos-x86_64:
     name: Standard Library Tests (GraalVM CE) (macos, x86_64)
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack

.github/workflows/gui.yml

@@ -61,7 +61,7 @@ jobs:
   enso-build-ci-gen-job-build-backend-macos-x86_64:
     name: Build Backend (macos, x86_64)
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
@@ -214,7 +214,7 @@ jobs:
   enso-build-ci-gen-job-new-gui-build-macos-x86_64:
     name: GUI build (macos, x86_64)
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
@@ -385,7 +385,7 @@ jobs:
     needs:
       - enso-build-ci-gen-job-build-backend-macos-x86_64
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack

.github/workflows/release.yml

@@ -202,7 +202,7 @@ jobs:
     needs:
       - enso-build-ci-gen-draft-release-linux-x86_64
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
@@ -492,7 +492,7 @@ jobs:
       - enso-build-ci-gen-draft-release-linux-x86_64
       - enso-build-ci-gen-job-upload-backend-macos-x86_64
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack

.github/workflows/scala-new.yml

@@ -75,7 +75,7 @@ jobs:
   enso-build-ci-gen-job-ci-check-backend-graal-vm-ce-macos-x86_64:
     name: Engine (GraalVM CE) (macos, x86_64)
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
@@ -220,7 +220,7 @@ jobs:
   enso-build-ci-gen-job-jvm-tests-graal-vm-ce-macos-x86_64:
     name: JVM Tests (GraalVM CE) (macos, x86_64)
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
@@ -390,7 +390,7 @@ jobs:
   enso-build-ci-gen-job-standard-library-tests-graal-vm-ce-macos-x86_64:
     name: Standard Library Tests (GraalVM CE) (macos, x86_64)
     runs-on:
-      - macos-latest
+      - macos-12
     steps:
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack

build/build/src/ci_gen/job.rs

@@ -66,6 +66,8 @@ impl RunsOn for RunnerLabel {
             RunnerLabel::MacOS => Some("MacOS".to_string()),
             RunnerLabel::Linux => Some("Linux".to_string()),
             RunnerLabel::Windows => Some("Windows".to_string()),
+            RunnerLabel::MacOS12 => Some("MacOS12".to_string()),
+            RunnerLabel::MacOS13 => Some("MacOS13".to_string()),
             RunnerLabel::MacOSLatest => Some("MacOSLatest".to_string()),
             RunnerLabel::LinuxLatest => Some("LinuxLatest".to_string()),
             RunnerLabel::WindowsLatest => Some("WindowsLatest".to_string()),
@@ -93,7 +95,7 @@ impl RunsOn for OS {
 impl RunsOn for (OS, Arch) {
     fn runs_on(&self) -> Vec<RunnerLabel> {
         match self {
-            (OS::MacOS, Arch::X86_64) => runs_on(OS::MacOS, RunnerType::GitHubHosted),
+            (OS::MacOS, Arch::X86_64) => vec![RunnerLabel::MacOS12],
             (os, Arch::X86_64) => runs_on(*os, RunnerType::SelfHosted),
             (OS::MacOS, Arch::AArch64) => {
                 let mut ret = runs_on(OS::MacOS, RunnerType::SelfHosted);

build/ci_utils/src/actions/workflow/definition.rs

@@ -1014,6 +1014,11 @@ pub enum RunnerLabel {
     Windows,
     #[serde(rename = "engine")]
     Engine,
+    #[serde(rename = "macos-12")]
+    MacOS12,
+    /// macos-13 is the last x64 version of the GitHub-hosted macOS runner.
+    #[serde(rename = "macos-13")]
+    MacOS13,
     #[serde(rename = "macos-latest")]
     MacOSLatest,
     #[serde(rename = "ubuntu-latest")]