Bump mkdoc action versions

Author: cmd-ntrf

.github/workflows/mkdocs_deploy.yml

@@ -13,12 +13,12 @@ jobs:
       contents: write
     steps:
     - name: checkout
-      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0  # need to fetch all history to ensure correct Git revision dates in docs
 
     - name: set up Python
-      uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c # v5.0.0
+      uses: actions/setup-python@v6
       with:
         python-version: '3.10'
 

.github/workflows/mkdocs_test.yml

@@ -15,10 +15,10 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
     - name: checkout
-      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      uses: actions/checkout@v6
 
     - name: set up Python
-      uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c # v5.0.0
+      uses: actions/setup-python@v6
       with:
         python-version: '3.10'