chore: Update to Go 1.25 (#1519)

.github/workflows/benchmark.yml

@@ -22,7 +22,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v6
         with:
-          go-version: 1.24.4
+          go-version: 1.25.5
           repository: "${{ github.event.inputs.repository || 'TwiN/gatus' }}"
           ref: "${{ github.event.inputs.ref || 'master' }}"
       - uses: actions/checkout@v5

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v6
         with:
-          go-version: 1.24.4
+          go-version: 1.25.5
       - uses: actions/checkout@v5
       - name: Build binary to make sure it works
         run: go build