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: averikitsch
           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: averikitsch
           numOfAssignee: 1

.github/workflows/skills-validate.yml

@@ -29,9 +29,9 @@ jobs:
   skills-validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Set up Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
           python-version: "3.11"
       - name: Install skills-ref