chore: update GHA action dependencies

Author: mhucka

.github/workflows/markdown-linter.yml

@@ -23,9 +23,12 @@ jobs:
     name: Run Markdown linter
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: DavidAnson/markdownlint-cli2-action@v13
-      with:
-        config: .markdownlint.json
-        globs: |
-          *.md
+      - name: Check out copy of git repository.
+        uses: actions/checkout@v4
+
+      - name: Run Markdownlint on .md files.
+        uses: DavidAnson/markdownlint-cli2-action@v15
+        with:
+          config: .markdownlint.json
+          globs: |
+            *.md

.github/workflows/yaml-linter.yml

@@ -29,6 +29,6 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Run YAMLlint
-        uses: ibiqlik/action-yamllint@v3
+        uses: ibiqlik/action-yamllint@v3.1.1
         with:
           config_file: .yamllint.yml