Pin GitHub Actions to immutable commit SHAs

Tags already matched the latest releases; pinning the commit hashes stops a retagged action from changing under us while Dependabot can still bump the SHA and version comment.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ajinabraham

.github/workflows/build_publish.yml

@@ -17,15 +17,15 @@ jobs:
         os: [ubuntu-latest, ubuntu-24.04-arm, windows-latest, macos-latest]
 
     steps:
-      - uses: actions/checkout@v7.0.1
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: recursive
           persist-credentials: false
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v4.2.1
+        uses: pypa/cibuildwheel@e090b81e30c4d855ea63bf4b6e59204c09a101ae # v4.2.1
 
-      - uses: actions/upload-artifact@v7.0.1
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: wheels-${{ matrix.os }}
           path: ./wheelhouse/*.whl
@@ -45,14 +45,14 @@ jobs:
 
     steps:
       - name: Download Artifacts
-        uses: actions/download-artifact@v8.0.1
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           pattern: wheels-*
           path: dist
           merge-multiple: true
 
       - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@v1.14.2
+        uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # v1.14.2
         with:
           # Many native wheels plus Sigstore attestations can exceed GitHub's
           # ~5 minute OIDC token lifetime.

.github/workflows/build_test.yml

@@ -15,10 +15,10 @@ jobs:
         os: [ubuntu-latest, ubuntu-24.04-arm, windows-latest, macos-latest]
 
     steps:
-      - uses: actions/checkout@v7.0.1
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: recursive
           persist-credentials: false
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v4.2.1
+        uses: pypa/cibuildwheel@e090b81e30c4d855ea63bf4b6e59204c09a101ae # v4.2.1

.github/workflows/test.yml

@@ -10,13 +10,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v7.0.1
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: recursive
           persist-credentials: false
 
       - name: Set up Python
-        uses: actions/setup-python@v7.0.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.x"