Specifying go version in setup-go github action.

Signed-off-by: Steven Wade <steven@stevenwade.co.uk>

.github/workflows/e2e-bootstrap.yaml

@@ -21,7 +21,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
         with:
-          go-version-file: 'go.mod'
+          go-version: 1.22.x
           cache-dependency-path: |
             **/go.sum
             **/go.mod