chore: upgrade versions of images and toolchain in github action (#87)

Author: truc0

.github/workflows/release.yml

@@ -10,12 +10,12 @@ name: Release
 jobs:
   release:
     name: Release
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-go@v2
       with:
-        go-version: '^1.15.6'
+        go-version: '^1.23'
     - run: go build -o lug github.com/sjtug/lug/cli/lug
     - name: create tar
       run: tar -cvzf lug.tar.gz lug

.github/workflows/test.yml

@@ -11,12 +11,12 @@ name: Test
 jobs:
   test:
     name: Test
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-go@v2
       with:
-        go-version: '^1.15.6'
+        go-version: '^1.23'
     # TODO: import coveralls key
     # - run: go get github.com/mattn/goveralls
     - run: go build -o lug github.com/sjtug/lug/cli/lug