chore(deps): bump actions/setup-python from 6 to 7 (#8456)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 6 to 7.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -496,7 +496,7 @@ jobs:
       - uses: actions/checkout@v7
         with:
           persist-credentials: false
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.12"
       - name: Validate all languages

.github/workflows/dast-smoke.yml

@@ -53,7 +53,7 @@ jobs:
             if curl -sf http://localhost:20128/api/monitoring/health >/dev/null; then echo up; break; fi
             sleep 2
           done
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.12"
       - run: pip install schemathesis

.github/workflows/nightly-llm-security.yml

@@ -90,7 +90,7 @@ jobs:
             if curl -sf http://localhost:20128/api/monitoring/health >/dev/null; then echo up; break; fi
             sleep 2
           done
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         if: steps.gate.outputs.run == 'true'
         with: { python-version: "3.12" }
       - run: pip install garak

.github/workflows/nightly-schemathesis.yml

@@ -35,7 +35,7 @@ jobs:
             if curl -sf http://localhost:20128/api/monitoring/health >/dev/null; then echo "server up"; break; fi
             sleep 2
           done
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with: { python-version: "3.12" }
       - name: Install schemathesis
         run: pip install schemathesis