Update actions/cache digest to caa2961 (#39647)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/test-ruby.yml

@@ -44,7 +44,7 @@ jobs:
           onlyProduction: 'true'
 
       - name: Cache assets from compilation
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
         with:
           path: |
             public/assets
@@ -154,7 +154,7 @@ jobs:
           bin/flatware fan bin/rails db:test:prepare
 
       - name: Cache RSpec persistence file
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
         with:
           path: |
             tmp/rspec/examples.txt
@@ -252,7 +252,7 @@ jobs:
 
       - name: Cache Playwright Chromium browser
         id: playwright-cache
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
         with:
           path: ~/.cache/ms-playwright
           key: playwright-browsers-${{ runner.os }}-${{ hashFiles('yarn.lock') }}