global: update to Go 1.25.0 (#1107)

Related-to: rh-ecosystem-edge/eco-gotests#746

This PR updates Go to 1.25.0 and takes a new approach of separating the go and toolchain directives. This allows us to express compatibility with all go1.25 versions while specifying a more exact one to build with.

Similarly, golangci-lint has been updated to 2.4.0 for Go 1.25 support.

Author: klaskosk

go.mod

@@ -1,6 +1,8 @@
 module github.com/rh-ecosystem-edge/eco-goinfra
 
-go 1.24.5
+go 1.25
+
+toolchain go1.25.0
 
 require (
 	github.com/Masterminds/semver/v3 v3.4.0

scripts/golangci-lint.sh

@@ -4,7 +4,7 @@ set -e
 
 . "$(dirname "$0")"/common.sh
 
-GOLANGCI_LINT_VERSION="2.2.2"
+GOLANGCI_LINT_VERSION="2.4.0"
 
 # IsGoLangCiLintInstalled is used to check whether golangci-lint executable is on the $PATH.
 function IsGolangCiLintInstalled() {