ci: update Go version to 1.26.1 across all workflows

go.mod requires >= 1.26.1 but workflows were pinned to 1.25.5, causing
all builds to fail with GOTOOLCHAIN=local.

Author: hanzo-dev

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ on:
     branches: [ main, develop, master ]
 
 env:
-  GO_VERSION: '1.25.5'
+  GO_VERSION: '1.26.1'
   GOPRIVATE: github.com/luxfi/*
   GONOSUMDB: github.com/luxfi/*
 

.github/workflows/release-binaries.yml

@@ -43,7 +43,7 @@ jobs:
         shell: bash
       - uses: actions/setup-go@v6
         with:
-          go-version: '1.25.5'
+          go-version: '1.26.1'
       - name: Build
         run: |
           CGO_ENABLED=1 CGO_CFLAGS="-O -D__BLST_PORTABLE__" GOOS=linux GOARCH=amd64 go build -v -ldflags "-X github.com/luxfi/evm/plugin/evm.Version=${{ github.ref_name }}" -o evm ./plugin
@@ -74,7 +74,7 @@ jobs:
         shell: bash
       - uses: actions/setup-go@v6
         with:
-          go-version: '1.25.5'
+          go-version: '1.26.1'
       - name: Set up arm64 cross compiler
         run: |
           sudo apt-get -y update
@@ -109,7 +109,7 @@ jobs:
         shell: bash
       - uses: actions/setup-go@v6
         with:
-          go-version: '1.25.5'
+          go-version: '1.26.1'
       - name: Build
         run: |
           CGO_ENABLED=1 CGO_CFLAGS="-O -D__BLST_PORTABLE__" GOOS=darwin GOARCH=amd64 go build -v -ldflags "-X github.com/luxfi/evm/plugin/evm.Version=${{ github.ref_name }}" -o evm ./plugin
@@ -140,7 +140,7 @@ jobs:
         shell: bash
       - uses: actions/setup-go@v6
         with:
-          go-version: '1.25.5'
+          go-version: '1.26.1'
       - name: Build
         run: |
           CGO_ENABLED=1 CGO_CFLAGS="-O -D__BLST_PORTABLE__" GOOS=darwin GOARCH=arm64 go build -v -ldflags "-X github.com/luxfi/evm/plugin/evm.Version=${{ github.ref_name }}" -o evm ./plugin

.github/workflows/tests.yml

@@ -35,7 +35,7 @@ jobs:
         shell: bash
       - uses: actions/setup-go@v6
         with:
-          go-version: "1.25.5"
+          go-version: "1.26.1"
       - name: Run shellcheck
         shell: bash
         run: scripts/shellcheck.sh
@@ -76,7 +76,7 @@ jobs:
         shell: bash
       - uses: actions/setup-go@v6
         with:
-          go-version: "1.25.5"
+          go-version: "1.26.1"
       - name: Set timeout on Windows # Windows UT run slower and need a longer timeout
         shell: bash
         if: matrix.os == 'windows-latest'