chore: Disable http2 feature in isahc.

This removes transitive dependency on libnghttp2, which is pretty heavy.

Cargo.lock

@@ -1990,7 +1990,6 @@ checksum = "14d05c10f541ae6f3bc5b3d923c20001f47db7d5f0b2bc6ad16490133842db79"
 dependencies = [
  "cc",
  "libc",
- "libnghttp2-sys",
  "libz-sys",
  "openssl-sys",
  "pkg-config",
@@ -3906,16 +3905,6 @@ version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "348108ab3fba42ec82ff6e9564fc4ca0247bdccdc68dd8af9764bbc79c3c8ffb"
 
-[[package]]
-name = "libnghttp2-sys"
-version = "0.1.7+1.45.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57ed28aba195b38d5ff02b9170cbff627e336a20925e43b4945390401c5dc93f"
-dependencies = [
- "cc",
- "libc",
-]
-
 [[package]]
 name = "libsqlite3-sys"
 version = "0.24.2"

Cargo.toml

@@ -81,7 +81,8 @@ env_logger = { version = "0.9" }
 futures = { version = "0.3" }
 globset = { version = "0.4" }
 indoc = "1"
-isahc = "1.7.2"
+# We explicitly disable a http2 support in isahc.
+isahc = { version = "1.7.2", default-features = false, features = ["static-curl", "text-decoding"] }
 lazy_static = { version = "1.4.0" }
 log = { version = "0.4.16", features = ["kv_unstable_serde"] }
 ordered-float = { version = "2.1.1" }