Set GOTOOLCHAIN on Docker and CI

.drone.yml

@@ -1,5 +1,6 @@
 ---
 environment:
+  GOTOOLCHAIN: "local"
   CGO_ENABLED: "0"
   GOARCH: amd64
   GOOS: linux
@@ -40,6 +41,7 @@ steps:
 type: docker
 ---
 environment:
+  GOTOOLCHAIN: "local"
   CGO_ENABLED: "0"
   GOARCH: arm64
   GOOS: linux
@@ -80,6 +82,7 @@ steps:
 type: docker
 ---
 environment:
+  GOTOOLCHAIN: "local"
   CGO_ENABLED: "0"
   GOARCH: amd64
   GOOS: linux
@@ -120,6 +123,7 @@ steps:
 type: docker
 ---
 environment:
+  GOTOOLCHAIN: "local"
   CGO_ENABLED: "0"
   GOARCH: arm64
   GOOS: linux

Dockerfile

@@ -7,6 +7,7 @@ FROM --platform=$BUILDPLATFORM ${from_builder} AS build
 
 ARG TARGETARCH
 ARG TARGETOS
+ARG GOTOOLCHAIN=local
 
 RUN apk update && apk add --no-cache \
     bash \
@@ -22,6 +23,7 @@ RUN ./build-compress.sh
 ENV CGO_ENABLED=0
 ENV GOOS=${TARGETOS}
 ENV GOARCH=${TARGETARCH}
+ENV GOTOOLCHAIN=${GOTOOLCHAIN}
 
 RUN go build -pgo=auto -v -trimpath -o "${GOBIN}/go-away" ./cmd/go-away
 RUN test -e "${GOBIN}/go-away"