chore(deps): update pnpm/action-setup action to v6

Author: renovate[bot]

.github/workflows/bump.yml

@@ -36,7 +36,7 @@ jobs:
       - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # for git describe --tags (used by bumpp internally)
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
       - uses: actions/setup-node@v6
         with:
           node-version: 24

.github/workflows/dependencies.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
 
       - uses: actions/setup-node@v6
         with:

.github/workflows/headers.yml

@@ -20,7 +20,7 @@ jobs:
           fetch-depth: 0 # to figure out last change to the json file
 
       - uses: fregante/setup-git-user@v2
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
 
       - uses: actions/setup-node@v6
         with:

.github/workflows/node.js.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
     - name: Checkout
       uses: actions/checkout@v6
-    - uses: pnpm/action-setup@v5
+    - uses: pnpm/action-setup@v6
     - name: Install Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v6
       with:

.github/workflows/npm-publish.yml

@@ -30,7 +30,7 @@ jobs:
       id-token: write
     steps:
       - uses: actions/checkout@v6
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
       - uses: actions/setup-node@v6
         with:
           node-version: 24