Use Go version from go.mod instead of hardcoding

Changes:
- Remove hardcoded GO_VERSION environment variable from ci.yml
- Update all setup-go actions to use go-version-file: 'go.mod'
- This ensures workflows automatically use the Go version specified in go.mod
- Fixes inconsistency where build-containers.yml used 1.25 while go.mod specifies 1.24.4

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: JAORMX

.github/workflows/build-containers.yml

@@ -217,7 +217,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6
         with:
-          go-version: '1.25'
+          go-version-file: 'go.mod'
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3

.github/workflows/ci.yml

@@ -7,9 +7,6 @@ on:
     branches: [ main ]
   workflow_dispatch:
 
-env:
-  GO_VERSION: '1.24'
-
 jobs:
 
   lint:
@@ -22,7 +19,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6
         with:
-          go-version: ${{ env.GO_VERSION }}
+          go-version-file: 'go.mod'
 
       - name: Run golangci-lint
         uses: golangci/golangci-lint-action@4afd733a84b1f43292c63897423277bb7f4313a9 # v8
@@ -40,7 +37,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6
         with:
-          go-version: ${{ env.GO_VERSION }}
+          go-version-file: 'go.mod'
 
       - name: Cache Go modules
         uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4