Bump golang from 1.22.5-alpine to 1.22.6-alpine

Bumps golang from 1.22.5-alpine to 1.22.6-alpine.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22.5-alpine AS builder
+FROM golang:1.22.6-alpine AS builder
 WORKDIR /go/src/github.com/ingmarstein/mielesolar/
 COPY . .
 RUN apk add -U --no-cache ca-certificates git \