fix(ci): update actions/cache to 6.1.0

.github/workflows/deploy-site.yml

@@ -67,7 +67,7 @@ jobs:
         with:
           node-version: 22
 
-      - uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         id: npm-cache
         with:
           path: website/node_modules

.github/workflows/docs-site-checks.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           node-version: 22
 
-      - uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         id: npm-cache
         with:
           path: website/node_modules

.github/workflows/e2e-desktop.yml

@@ -34,7 +34,7 @@ jobs:
         with:
           node-version: 22
 
-      - uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         id: npm-cache
         with:
           # All workspace node_modules; `full` key = installs that ran
@@ -88,7 +88,7 @@ jobs:
       # cache to avoid cold starts on unrelated PRs.
       - name: Restore visual baseline screenshots
         id: restore-baselines
-        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: apps/desktop/e2e/*-snapshots
           key: visual-baselines-${{ github.ref_name }}

.github/workflows/js-autofix.yml

@@ -69,7 +69,7 @@ jobs:
         with:
           node-version: 22
 
-      - uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         id: npm-cache
         with:
           # All workspace node_modules; noscripts key kept separate from

.github/workflows/js-tests.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           node-version: 22
 
-      - uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         id: npm-cache
         with:
           # Cache every workspace's node_modules, not just the root: npm
@@ -82,7 +82,7 @@ jobs:
         with:
           node-version: 22
 
-      - uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         id: npm-cache
         with:
           path: |