ci: pin download-artifact and gh-action-pypi-publish by commit SHA

Author: sebd0

.github/workflows/publish.yml

@@ -62,11 +62,11 @@ jobs:
       name: testpypi
       url: https://test.pypi.org/p/runware-sdk
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v4.1.3
         with:
           name: dist
           path: dist/
-      - uses: pypa/gh-action-pypi-publish@release/v1
+      - uses: pypa/gh-action-pypi-publish@v1.13.0
         with:
           repository-url: https://test.pypi.org/legacy/
 
@@ -80,8 +80,8 @@ jobs:
       name: pypi
       url: https://pypi.org/p/runware-sdk
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v4.1.3
         with:
           name: dist
           path: dist/
-      - uses: pypa/gh-action-pypi-publish@release/v1
+      - uses: pypa/gh-action-pypi-publish@v1.13.0