change(ci): run coverage on stable (#4465)

* Run coverage on stable

* Update .github/workflows/coverage.yml

Co-authored-by: teor <teor@riseup.net>

* fix(ci): sync patch file

* fix(ci): timeout and docs

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Gustavo Valverde <gustavo@iterativo.do>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

.github/workflows/coverage.patch.yml

@@ -13,7 +13,7 @@ on:
 
 jobs:
   coverage:
-    name: Coverage nightly
+    name: Coverage on stable
     # The large timeout is to accommodate:
     # - nightly builds (75 minutes, typically 30-50 minutes)
     # - parameter downloads (40 minutes, but only when the cache expires)

.github/workflows/coverage.yml

@@ -36,11 +36,11 @@ env:
 
 jobs:
   coverage:
-    name: Coverage nightly
+    name: Coverage on stable
     # The large timeout is to accommodate:
-    # - nightly builds (75 minutes, typically 30-50 minutes), and
+    # - stable builds (typically 30-50 minutes), and
     # - parameter downloads (an extra 90 minutes, but only when the cache expires)
-    timeout-minutes: 165
+    timeout-minutes: 140
     runs-on: ubuntu-latest
 
     steps:
@@ -50,7 +50,7 @@ jobs:
 
       - uses: actions-rs/toolchain@v1.0.7
         with:
-          toolchain: nightly
+          toolchain: stable
           override: true
           profile: minimal
           components: llvm-tools-preview