feat: bump go to 1.22 (#194)

* feat: bump go to 1.22

* ci: bump staticheck version

Author: kruskall

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
     - run: go mod tidy -v
     - uses: dominikh/[email protected]
       with:
-        version: "2023.1.3"
+        version: "2024.1.1"
         install-go: false
     - name: Verify repo is up-to-date
       run: |

go.mod

@@ -1,6 +1,6 @@
 module github.com/elastic/go-docappender/v2
 
-go 1.21
+go 1.22
 
 require (
 	github.com/elastic/go-elasticsearch/v8 v8.14.0