Merge pull request #1864 from ral-facilities/renovate/actions-setup-python-6.x

Update actions/setup-python action to v6

Author: louise-davies

.github/workflows/ci-build.yml

@@ -79,7 +79,7 @@ jobs:
           java-version: 8
           java-package: jdk
       - name: Setup Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: 3.9
           architecture: x64
@@ -239,7 +239,7 @@ jobs:
           java-version: 8
           java-package: jdk
       - name: Setup Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: 3.9
           architecture: x64
@@ -409,7 +409,7 @@ jobs:
           java-version: 8
           java-package: jdk
       - name: Setup Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: 3.9
           architecture: x64