chore(deps): update github actions

Author: renovate-bot

.github/workflows/assign-issues.yml

@@ -25,7 +25,7 @@ jobs:
       issues: write
     steps:
       - name: "Auto-assign issue"
-        uses: pozil/auto-assign-issue@v2
+        uses: pozil/auto-assign-issue@70adb98ca8b3941524e9ecde48e89067c4f96736 # v3.0.0
         with:
           assignees: chriskinzel
           numOfAssignee: 1

.github/workflows/assign-prs.yml

@@ -26,7 +26,7 @@ jobs:
       pull-requests: write
     steps:
       - name: "Auto-assign PR"
-        uses: pozil/auto-assign-issue@v2
+        uses: pozil/auto-assign-issue@70adb98ca8b3941524e9ecde48e89067c4f96736 # v3.0.0
         with:
           assignees: chriskinzel
           numOfAssignee: 1

.github/workflows/mcp-check.yml

@@ -30,7 +30,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
         with:
           node-version: '20'