feat: support go v1.20 and drop v1.18 (#231)

Author: apricote

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: [1.18, 1.19]
+        go-version: ["1.19", "1.20"]
     steps:
     - name: Set up Go ${{ matrix.go-version }}
       uses: actions/setup-go@v3

.gitlab-ci.yml

@@ -11,17 +11,13 @@ test:golangci-lint:
     - golangci-lint run -v
   except:
     - tags
-    - master
-  tags:
-    - hc-bladerunner
+    - main
 
 test:tests:
   stage: test
-  image: golang:1.18
+  image: golang:1.19
   script:
     - go test -v -race ./...
   except:
     - tags
-    - master
-  tags:
-    - hc-bladerunner
+    - main

go.mod

@@ -1,6 +1,6 @@
 module github.com/hetznercloud/hcloud-go
 
-go 1.18
+go 1.19
 
 require (
 	github.com/google/go-cmp v0.5.5