Bump image base and tools

Use latest versions (especially GH CLI 2.72.0)

Author: adidenko

Dockerfile

@@ -3,11 +3,11 @@
 #
 
 ###### Build gha-token tool
-FROM golang:1.24.4-alpine3.21 AS build
+FROM golang:1.24.6-alpine3.22 AS build
 RUN go install github.com/slawekzachcial/gha-token@1.1.0
 
 ###### Final image
-FROM alpine:3.21
+FROM alpine:3.22
 
 RUN apk add --no-cache git github-cli bash openssh curl \
     && adduser -u 1100 -s /sbin/nologin -D git \