fix: update action version (#278)

Author: walkowif

.github/workflows/build-check-install.yaml

@@ -527,7 +527,8 @@ jobs:
       - name: Get changed files 📃
         id: changed-files
         if: inputs.selected-shinytests == true
-        uses: tj-actions/changed-files@v45
+        # v45.0.8
+        uses: tj-actions/changed-files@a284dc1814e3fd07f2e34267fc8f81227ed29fb8
         with:
           path: ${{ github.event.repository.name }}/${{ inputs.package-subdirectory }}
           base_sha: "main"

.github/workflows/grammar.yaml

@@ -90,7 +90,8 @@ jobs:
 
       - name: Get changed files 🗞
         id: changed-files
-        uses: tj-actions/changed-files@v41
+        # v45.0.8
+        uses: tj-actions/changed-files@a284dc1814e3fd07f2e34267fc8f81227ed29fb8
         with:
           separator: ","
           files: |

.github/workflows/style.yaml

@@ -102,7 +102,8 @@ jobs:
 
       - name: Get changed files 🗞
         id: changed-files
-        uses: tj-actions/changed-files@v41
+        # v45.0.8
+        uses: tj-actions/changed-files@a284dc1814e3fd07f2e34267fc8f81227ed29fb8
         with:
           path: ${{ github.event.repository.name }}
           separator: ","