chore(deps): update golang docker tag to v1.21.5

plural-renovate[bot] · plural-renovate[bot] · commit 9fbd506473be · 2023-12-05T22:32:15.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21.2-alpine3.17 as builder
+FROM golang:1.21.5-alpine3.17 as builder
 
 ARG TARGETARCH
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-FROM golang:1.21.2-alpine3.17 as builder`
	`1`	`+FROM golang:1.21.5-alpine3.17 as builder`
`2`	`2`
`3`	`3`	`ARG TARGETARCH`
`4`	`4`