github-actions: bump actions/setup-python from 5.0.0 to 5.1.0

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5.0.0 to 5.1.0.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@0a5c615...82c7e63)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/otns.yml

@@ -67,7 +67,7 @@ jobs:
       with:
         go-version: "1.20"
     - name: Set up Python
-      uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c # v5.0.0
+      uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
       with:
         python-version: "3.9"
     - name: Bootstrap
@@ -107,7 +107,7 @@ jobs:
         with:
           go-version: "1.20"
       - name: Set up Python
-        uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c # v5.0.0
+        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
         with:
           python-version: "3.9"
       - name: Bootstrap
@@ -169,7 +169,7 @@ jobs:
         with:
           go-version: "1.20"
       - name: Set up Python
-        uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c # v5.0.0
+        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
         with:
           python-version: "3.9"
       - name: Bootstrap