Shared: Tighten test triggers and add Yeast test workflow

Removes the tree-sitter-extractor and yeast directories from the
workflows that trigger tests for C#, Go, Rust, and Swift inside the
/shared directory.

Also adds a separate workflow for running the Yeast tests whenever
changes are made inside /yeast, /yeast-macros, or /yeast-schema.

Author: tausbn

.github/workflows/csharp-qltest.yml

@@ -5,6 +5,10 @@ on:
     paths:
       - "csharp/**"
       - "shared/**"
+      - "!shared/tree-sitter-extractor/**"
+      - "!shared/yeast/**"
+      - "!shared/yeast-macros/**"
+      - "!shared/yeast-schema/**"
       - "misc/bazel/**"
       - .github/actions/fetch-codeql/action.yml
       - codeql-workspace.yml
@@ -16,6 +20,10 @@ on:
     paths:
       - "csharp/**"
       - "shared/**"
+      - "!shared/tree-sitter-extractor/**"
+      - "!shared/yeast/**"
+      - "!shared/yeast-macros/**"
+      - "!shared/yeast-schema/**"
       - "misc/bazel/**"
       - .github/workflows/csharp-qltest.yml
       - .github/actions/fetch-codeql/action.yml

.github/workflows/go-tests.yml

@@ -5,6 +5,10 @@ on:
       - "go/**"
       - "!go/documentation/**"
       - "shared/**"
+      - "!shared/tree-sitter-extractor/**"
+      - "!shared/yeast/**"
+      - "!shared/yeast-macros/**"
+      - "!shared/yeast-schema/**"
       - .github/workflows/go-tests.yml
       - .github/actions/**
       - codeql-workspace.yml

.github/workflows/rust.yml

@@ -7,6 +7,9 @@ on:
       - "misc/bazel/**"
       - "misc/codegen/**"
       - "shared/**"
+      - "!shared/yeast/**"
+      - "!shared/yeast-macros/**"
+      - "!shared/yeast-schema/**"
       - "MODULE.bazel"
       - .github/workflows/rust.yml
       - .github/actions/**

.github/workflows/swift.yml

@@ -7,6 +7,10 @@ on:
       - "misc/bazel/**"
       - "misc/codegen/**"
       - "shared/**"
+      - "!shared/tree-sitter-extractor/**"
+      - "!shared/yeast/**"
+      - "!shared/yeast-macros/**"
+      - "!shared/yeast-schema/**"
       - "*.bazel*"
       - .github/workflows/swift.yml
       - .github/actions/**

.github/workflows/yeast-test.yml

@@ -0,0 +1,35 @@
+name: Test Yeast
+
+on:
+  push:
+    paths:
+      - "shared/yeast/**"
+      - "shared/yeast-macros/**"
+      - "shared/yeast-schema/**"
+      - .github/workflows/yeast-test.yml
+    branches:
+      - main
+      - "rc/*"
+  pull_request:
+    paths:
+      - "shared/yeast/**"
+      - "shared/yeast-macros/**"
+      - "shared/yeast-schema/**"
+      - .github/workflows/yeast-test.yml
+    branches:
+      - main
+      - "rc/*"
+
+env:
+  CARGO_TERM_COLOR: always
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - name: Run tests
+        run: cargo test --verbose --package codeql-extractor --package yeast --package yeast-macros --package yeast-schema