Change gh-action-pypi-publish to tag (#456)

Author: paddyroddy

.github/workflows/deploy.yaml

@@ -51,7 +51,8 @@ jobs:
           path: dist
 
       - name: Publish package to TestPyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
+        # yamllint disable-line rule:line-length
+        uses: pypa/gh-action-pypi-publish@76f52bc884231f62b9a034ebfe128415bbaabdfc # v1.12.4
         with:
           repository-url: https://test.pypi.org/legacy/
           verbose: true
@@ -71,6 +72,7 @@ jobs:
           path: dist
 
       - name: Publish package to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
+        # yamllint disable-line rule:line-length
+        uses: pypa/gh-action-pypi-publish@76f52bc884231f62b9a034ebfe128415bbaabdfc # v1.12.4
         with:
           verbose: true