Bump actions/setup-python from 5.3.0 to 5.4.0

Closes #60029

GitOrigin-RevId: 920fd33
Change-Id: I25104652498f71e82deae7044420623b56dc59f4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/407360
Reviewed-by: Alexander Thomas <[email protected]>

Author: dependabot[bot]

.github/workflows/third-party-deps-scan.yml

@@ -26,7 +26,7 @@ jobs:
         with:
           persist-credentials: false
       - name: "setup python"
-        uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b
+        uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38
         with:
           python-version: '3.7.7' # install the python version needed
       - name: "extract deps, find commit hash, pass to osv-scanner"