chore(deps): update golang docker tag to v1.20

.drone.yml

@@ -3,17 +3,17 @@ kind: pipeline
 name: coopcloud.tech/abra
 steps:
   - name: make check
-    image: golang:1.19
+    image: golang:1.20
     commands:
       - make check
 
   - name: make build
-    image: golang:1.19
+    image: golang:1.20
     commands:
       - make build
 
   - name: make test
-    image: golang:1.19
+    image: golang:1.20
     commands:
       - make test
 
@@ -45,7 +45,7 @@ steps:
       event: tag
 
   - name: release
-    image: golang:1.19
+    image: golang:1.20
     environment:
       GITEA_TOKEN:
         from_secret: goreleaser_gitea_token

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.18-alpine AS build
+FROM golang:1.20-alpine AS build
 
 ENV GOPRIVATE coopcloud.tech