update go 1.26 (#168)

* upgrade go 1.26

Author: mfrancisc

.github/workflows/govulncheck-action-test-lint.yml

@@ -40,9 +40,14 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v4
 
-    - name: Lint
-      uses: golangci/golangci-lint-action@v9
+    - name: Install Go
+      uses: actions/setup-go@v6
       with:
-        working-directory: govulncheck-action
-        version: v2.7.2
-        args: --config=.golangci.yml --verbose .
+        go-version-file: govulncheck-action/go.mod
+
+    - name: Install golangci-lint
+      run: go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.11.2
+
+    - name: Lint
+      working-directory: govulncheck-action
+      run: golangci-lint run --path-mode=abs --config=.golangci.yml --verbose ./...

govulncheck-action/Containerfile

@@ -1,4 +1,4 @@
-FROM golang:1.24.0 as builder
+FROM golang:1.26.0 as builder
 
 ARG GOOS=linux 
 ARG GOARCH=amd64
@@ -12,10 +12,9 @@ ENV GOTOOLCHAIN=auto
 RUN echo "Building govulncheckx binary for $GOOS/$GOARCH"
 RUN GOOS=$GOOS GOARCH=$GOARCH go build -v -o govulncheckx main.go
 
-FROM golang:1.24.0
+FROM golang:1.26.0
 # using a fresh golang image without the `WORKDIR` from the builder stage
 # see https://docs.github.com/en/actions/reference/workflows-and-actions/dockerfile-support#workdir
-# using golang 1.24.0 since most of our projects are still using it (and toolchain will not downgrade the version of go) 
 
 # copy the binary from the builder stage
 COPY --from=builder /usr/src/app/govulncheckx /usr/local/bin/govulncheckx

govulncheck-action/go.mod

@@ -1,8 +1,6 @@
 module github.com/codeready-toolchain/toolchain-cicd/govulncheck-action
 
-go 1.24.0
-
-toolchain go1.24.13
+go 1.26.0
 
 require (
 	github.com/spf13/cobra v1.9.1