fix: update golangci-lint-action to v6 and remove deprecated linters

Co-authored-by: hsluoyz <3787410+hsluoyz@users.noreply.github.com>
Agent-Logs-Url: https://github.com/casdoor/casdoor/sessions/7c8360de-bb17-4fd6-8106-81a46e803e81

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v4
         with:
-          go-version: '1.23'
+          go-version: '1.25'
           cache-dependency-path: ./go.mod
       - name: Tests
         run: |
@@ -59,7 +59,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v4
         with:
-          go-version: '1.23'
+          go-version: '1.25'
           cache-dependency-path: ./go.mod
       - run: go version
       - name: Build
@@ -75,14 +75,14 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v4
         with:
-          go-version: '1.23'
+          go-version: '1.25'
           cache: false
 
       # gen a dummy config file
       - run: touch dummy.yml
 
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3
+        uses: golangci/golangci-lint-action@v6
         with:
           version: latest
           args: --disable-all -c dummy.yml -E=gofumpt --max-same-issues=0 --timeout 5m --modules-download-mode=mod
@@ -104,7 +104,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v4
         with:
-          go-version: '1.23'
+          go-version: '1.25'
           cache-dependency-path: ./go.mod
       - name: start backend
         run: nohup go run ./main.go > /tmp/backend.log 2>&1 &

.golangci.yml

@@ -1,7 +1,6 @@
 linters:
   disable-all: true
   enable:
-    - deadcode
     - dupl
     - errcheck
     - goconst
@@ -17,14 +16,11 @@ linters:
     - nakedret
     - prealloc
     - staticcheck
-    - structcheck
     - typecheck
     - unconvert
     - unparam
     - unused
-    - varcheck
     - revive
-    - exportloopref
 run:
   deadline: 5m
   skip-dirs:

Dockerfile

@@ -9,7 +9,7 @@ RUN yarn install --frozen-lockfile --network-timeout 1000000
 COPY ./web .
 RUN NODE_OPTIONS="--max-old-space-size=4096" yarn run build
 
-FROM --platform=$BUILDPLATFORM golang:1.24.13 AS BACK
+FROM --platform=$BUILDPLATFORM golang:1.25.8 AS BACK
 WORKDIR /go/src/casdoor
 
 # Copy only go.mod and go.sum first for dependency caching

go.mod

@@ -1,8 +1,8 @@
 module github.com/casdoor/casdoor
 
-go 1.24.0
+go 1.25.0
 
-toolchain go1.24.13
+toolchain go1.25.8
 
 require (
 	github.com/Masterminds/squirrel v1.5.3