ci: align the pipelines with the hand-written templates

Assisted-by: GLM 5.3 Flash

.gitea/workflows/race.yml

@@ -1,8 +1,10 @@
-# Race, Go. Dispatched by hand, and run as part of the release gates.
+# Race, Go. Dispatched by hand, and never a gate on a push or a tag: the release tag is
+# cut only after `just gates` has already raced the tree, so this workflow is the
+# explicit second opinion, not a step of the release.
 #
 # The race detector roughly doubles both time and memory, which the shared runner box
 # cannot afford on every push. Locally it belongs to `just gates`, which runs it once per
-# task; here it is an explicit decision rather than a routine.
+# task; here it is a decision rather than a routine.
 #
 # Every step is one command, so the step that fails is the gate that failed.
 name: Race
@@ -11,7 +13,6 @@ on:
   workflow_dispatch:
 
 env:
-  GOAMD64: v3
   # One core: parallelism buys no speed here and costs memory the box does not have.
   GOFLAGS: -p=1
   GOMAXPROCS: "2"
@@ -19,7 +20,7 @@ env:
 jobs:
   race:
     runs-on: fedora
-    timeout-minutes: 45
+    timeout-minutes: 20
     steps:
       - uses: actions/checkout@v7
 
@@ -33,4 +34,4 @@ jobs:
         run: dnf install -y gcc
 
       - name: Race
-        run: go test -race -count=1 -timeout 30m ./...
+        run: go test -race -count=1 -timeout 10m ./...