ci: Use go 1.26 rather than 1.24

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>

Author: stefanberger

.github/workflows/go.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: [ '1.24', '1.25' ]
+        go: [ '1.26', '1.25' ]
     name: Go Version ${{ matrix.go }}
     steps:
     - uses: actions/checkout@v3