chore(deps): update actions/cache action to v6

.gitea/workflows/cd.yaml

@@ -39,7 +39,7 @@ jobs:
             go.sum
       - name: cache go
         id: cache-go
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6
         with:
           path: |
             /go_path

.gitea/workflows/ci.yaml

@@ -30,7 +30,7 @@ jobs:
             go.sum
       - name: cache go
         id: cache-go
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6
         with:
           path: |
             /go_path

Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/library/golang:1.26-alpine@sha256:3ad57304ad93bbec8548a0437ad9e06a455660655d9af011d58b993f6f615648 as build
+FROM docker.io/library/golang:1.25-alpine@sha256:04d017a27c481185c169884328a5761d052910fdced8c3b8edd686474efdf59b as build
 
 ARG GOARCH=amd64