Run matrix builds hourly

Signed-off-by: Loren Eteval <loren.eteval@proton.me>

.github/AGENTS.md

@@ -8,7 +8,7 @@ exceptions; it does not define the source test suite or imply that every package
 - `workflows/deploy-pypi.yml` is both packaging coverage and the publication graph. Pull requests and ordinary pushes
   build artifacts; tag pushes additionally publish Python distributions, create the GitHub release, and enable the
   dependent WinGet flow. Preserve permission, secret, environment, `if`, and `needs` boundaries.
-- `workflows/daily-matrix-build.yml` owns the shared binary matrix, called by `workflows/deploy-pypi.yml` and also run daily or
+- `workflows/matrix-build.yml` owns the shared binary matrix, called by `workflows/deploy-pypi.yml` and also run hourly or
   manually. Its standalone runs build, verify, and upload artifacts with read-only repository permissions; publication
   remains in `workflows/deploy-pypi.yml`.
 - Treat each matrix row as a supported product target with explicit runner OS/architecture, Python, Qt/PySide source,
@@ -43,7 +43,7 @@ exceptions; it does not define the source test suite or imply that every package
   source/native import checks, Nuitka/installer output, packaged architecture/dependency checks, artifact upload, and tag
   gates. When a target cannot run locally, add a narrow CI assertion that fails before publication with a useful reason.
 - `workflows/source-tests.yml` runs isolated source unittest discovery on Windows, Linux, and macOS and is a
-  required dependency of PyPI publication through `workflows/deploy-pypi.yml`. It can also run manually. Daily binary
+  required dependency of PyPI publication through `workflows/deploy-pypi.yml`. It can also run manually. Hourly binary
   builds retain their separate artifact scope. Source tests do not establish packaged behavior or Python/Qt
   floors beyond their matrix. Do not call an artifact build a regression-test pass; use `tests/README.md` for
   source verification. The source suite's offscreen Qt environment exercises widgets and event delivery, not native

.github/workflows/deploy-pypi.yml

@@ -84,7 +84,7 @@ jobs:
 
   deploy-binaries:
     name: Build binaries
-    uses: ./.github/workflows/daily-matrix-build.yml
+    uses: ./.github/workflows/matrix-build.yml
 
   github-release:
     name: Upload to GitHub Release

.github/workflows/matrix-build.yml

@@ -15,12 +15,12 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-name: Daily matrix build
+name: Matrix build
 
 on:
   schedule:
-    # Daily at 02:17 UTC (10:17 Asia/Shanghai).
-    - cron: '17 2 * * *'
+    # Every hour at minute 17 (UTC).
+    - cron: '17 * * * *'
   workflow_dispatch:
   workflow_call: