deps: bump Go to 1.26.4 across go.mod, Dockerfiles, GH Actions

Workspace-wide sync. luxfi/node already shipped on 1.26.4 in v1.30.6
(commit 121aca1fa9); this is the cross-repo catch-up.

.github/workflows/mint.yml

@@ -29,7 +29,7 @@ jobs:
       - name: setup-go-step
         uses: actions/setup-go@v5
         with:
-          go-version: 1.26.x
+          go-version: 1.26.4.x
 
       - name: github sha short
         id: vars

.github/workflows/publish.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.26'
+          go-version: '1.26.4'
 
       - name: Get version from tag
         id: version

.github/workflows/vulncheck.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.26.x
+          go-version: 1.26.4.x
           cache: false
       - name: Get official govulncheck
         run: go install golang.org/x/vuln/cmd/govulncheck@latest

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.26-bookworm AS build
+FROM golang:1.26.4-bookworm AS build
 
 WORKDIR /src
 COPY go.mod go.sum ./

go.mod

@@ -1,6 +1,6 @@
 module github.com/hanzoai/s3
 
-go 1.26.3
+go 1.26.4
 
 // Install tools using 'go install tool'.
 tool (