update to Go 1.25, drop Go 1.23, use go tool for gomock (#5283)

* update to Go 1.25, drop support for Go 1.23

* ci: update golangci-lint to v2.4.0

* use new go tool command for gomock / mockgen

* also update Go version used for oss-fuzz

.github/workflows/cross-compile.yml

@@ -4,7 +4,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go: [ "1.23.x", "1.24.x", "1.25.0-rc.1" ]
+        go: [ "1.24.x", "1.25.x" ]
     runs-on: ${{ fromJSON(vars['CROSS_COMPILE_RUNNER_UBUNTU'] || '"ubuntu-latest"') }}
     name: "Cross Compilation (Go ${{matrix.go}})"
     timeout-minutes: 30

.github/workflows/integration.yml

@@ -6,21 +6,21 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu" ]
-        go: [ "1.23.x", "1.24.x", "1.25.0-rc.1" ]
+        go: [ "1.24.x", "1.25.x" ]
         race: [ false ]
         use32bit: [ false ]
         include:
           - os: "ubuntu"
-            go: "1.24.x"
+            go: "1.25.x"
             race: true
           - os: "ubuntu"
-            go: "1.24.x"
+            go: "1.25.x"
             use32bit: true
           - os: "windows"
-            go: "1.24.x"
+            go: "1.25.x"
             race: false
           - os: "macos"
-            go: "1.24.x"
+            go: "1.25.x"
             race: false
     runs-on: ${{ fromJSON(vars[format('INTEGRATION_RUNNER_{0}', matrix.os)] || format('"{0}-latest"', matrix.os)) }}
     timeout-minutes: 30

.github/workflows/lint.yml

@@ -8,7 +8,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version: "1.24.x"
+          go-version: "1.25.x"
       - name: Check for //go:build ignore in .go files
         run: |
           IGNORED_FILES=$(grep -rl '//go:build ignore' . --include='*.go') || true
@@ -37,9 +37,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go: [  "1.23.x", "1.24.x", "1.25.0-rc.1" ]
+        go: [ "1.24.x", "1.25.x" ]
     env:
-      GOLANGCI_LINT_VERSION: v2.1.6
+      GOLANGCI_LINT_VERSION: v2.4.0
     name: golangci-lint (Go ${{ matrix.go }})
     steps:
       - uses: actions/checkout@v4

.github/workflows/unit.yml

@@ -7,7 +7,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu", "windows", "macos" ]
-        go: [ "1.23.x", "1.24.x", "1.25.0-rc.1" ]
+        go: [ "1.24.x", "1.25.x" ]
     runs-on: ${{ fromJSON(vars[format('UNIT_RUNNER_{0}', matrix.os)] || format('"{0}-latest"', matrix.os)) }}
     name: Unit tests (${{ matrix.os}}, Go ${{ matrix.go }})
     timeout-minutes: 30