CI: set GOTOOLCHAIN=local

So that we can specify the Go version deterministically

Signed-off-by: Akihiro Suda <[email protected]>

Author: AkihiroSuda

.github/workflows/lint.yml

@@ -9,6 +9,7 @@ on:
 
 env:
   GO_VERSION: 1.24.x
+  GOTOOLCHAIN: local
 
 jobs:
   go:

.github/workflows/project.yml

@@ -7,6 +7,9 @@ on:
       - 'release/**'
   pull_request:
 
+env:
+  GOTOOLCHAIN: local
+
 jobs:
   project:
     name: checks

.github/workflows/release.yml

@@ -5,6 +5,10 @@ on:
     tags:
     - 'v*'
     - 'test-action-release-*'
+
+env:
+  GOTOOLCHAIN: local
+
 jobs:
   release:
     runs-on: ubuntu-24.04

.github/workflows/test.yml

@@ -11,6 +11,7 @@ on:
 
 env:
   GO_VERSION: 1.24.x
+  GOTOOLCHAIN: local
   SHORT_TIMEOUT: 5
   LONG_TIMEOUT: 60