fix: cleanup nightly build jobs

.github/workflows/nightly.yaml

@@ -1,13 +0,0 @@
-name: "Nightly build"
-
-on:
-  workflow_dispatch: {}
-  schedule:
-    # every day at 3am
-    - cron: '0 3 * * *'
-
-jobs:
-  noop:
-    runs-on: ubuntu-latest
-    steps:
-      - run: echo "Success!"

.github/workflows/publish.yaml

@@ -1,5 +1,8 @@
 name: "Publish"
 on:
+  schedule:
+    # every day at 3am
+    - cron: '0 3 * * *'
   workflow_run:
     workflows: ["Nightly build"]
     types:
@@ -79,19 +82,12 @@ jobs:
       - uses: ./.github/actions/init-env-rust
       - uses: ./.github/actions/init-env-node
 
-      - name: Set nightly params
-        shell: bash
-        if: ${{!!github.event.workflow_run }}
-        run: |
-          echo "channel=nightly" >> $GITHUB_ENV
-          echo "bump=patch" >> $GITHUB_ENV
-
       - name: Use input params
         shell: bash
         if: ${{ !github.event.workflow_run }}
         run: |
-          echo "channel=${{ github.event.inputs.channel }}" >> $GITHUB_ENV
-          echo "bump=${{ github.event.inputs.bump }}" >> $GITHUB_ENV
+          echo "channel=${{ github.event.inputs.channel || 'nightly' }}" >> $GITHUB_ENV
+          echo "bump=${{ github.event.inputs.bump || 'patch' }}" >> $GITHUB_ENV
 
       - name: Set env variable with version
         shell: bash