ci: bump golang v1.24 as previous are EOL

Author: fredmaggiowski

.github/workflows/test-builds.yml

@@ -9,10 +9,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go_version: ['1.20', '1.21']
+        go_version: ['1.24', '1.25']
         os: [ubuntu-latest]
         include:
-        - go_version: '1.21'
+        - go_version: '1.25'
           os: macos-latest
     steps:
       - uses: actions/checkout@v1

go.mod

@@ -1,6 +1,6 @@
 module github.com/davidebianchi/gswagger
 
-go 1.20
+go 1.24
 
 require (
 	github.com/getkin/kin-openapi v0.126.0