update readme and ci

Author: leafty

.github/workflows/test.yaml

@@ -62,4 +62,4 @@ jobs:
       - name: Run golangci-lint
         uses: golangci/golangci-lint-action@v9
         with:
-          version: v2.6
+          version: v2.11

README.md

@@ -4,7 +4,7 @@ Miscellanous utilities for the @SwissDataScienceCenter/renku team.
 
 ## Installation
 
-Installing `renku-dev-utils` requires go version `>= v1.25` and `make`.
+Installing `renku-dev-utils` requires go version `>= v1.26` and `make`.
 
 ```bash
 make rdu