Bump toolchain to Go 1.22 and 1.23 (with 1.21 going EOL)

This doesn't implement the switch to `toolchain` directive yet.

.github/workflows/crossbuild.yaml

@@ -6,7 +6,7 @@ jobs:
   crossbuild:
     strategy:
       matrix:
-        go-version: [ "1.21", "1.22" ]
+        go-version: [ "1.22", "1.23" ]
         platform: [ "ubuntu-latest" ]
     runs-on: ${{ matrix.platform }}
     steps:

.github/workflows/tests.yaml

@@ -6,7 +6,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [ "1.21", "1.22" ]
+        go-version: [ "1.22", "1.23" ]
         platform: [ "ubuntu-latest" ]
     runs-on: ${{ matrix.platform }}
     steps:

.github/workflows/tools.yaml

@@ -6,7 +6,7 @@ jobs:
   tools:
     strategy:
       matrix:
-        go-version: [ "1.21", "1.22" ]
+        go-version: [ "1.22", "1.23" ]
         platform: [ "ubuntu-latest" ]
     runs-on: ${{ matrix.platform }}
     steps:

Makefile

@@ -64,7 +64,7 @@ ARCH := $(if $(GOARCH),$(GOARCH),$(shell GOTOOLCHAIN=local go env GOARCH))
 
 TAG := $(VERSION)__$(OS)_$(ARCH)
 
-GO_VERSION := 1.22
+GO_VERSION := 1.23
 BUILD_IMAGE := golang:$(GO_VERSION)-alpine
 
 BIN_EXTENSION :=

go.mod

@@ -1,5 +1,5 @@
 module github.com/thockin/go-build-template
 
-go 1.21
+go 1.22
 
-require github.com/spf13/pflag v1.0.5 // indirect
+require github.com/spf13/pflag v1.0.5