Pin actions/upload-artifact action to v4.6.2

Author: renovate[bot]

.github/actions/upload-actual/action.yml

@@ -22,7 +22,7 @@ runs:
   using: composite
   steps:
     - name: Upload Actual Results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
       with:
         name: actual_${{ inputs.name }}
         path: ${{ inputs.it-dir }}/${{ inputs.actual-dir }}
@@ -46,7 +46,7 @@ runs:
         npx diff2html-cli --input file --style side --file "target/diff_${NAME}.html" -- "target/test.diff"
 
     - name: Upload Diff Report
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
       with:
         name: diff_${{ inputs.name }}
         path: ${{ inputs.it-dir }}/target/diff_${{ inputs.name }}.html