.github: wire up PREEMPT_RT training course

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

.github/workflows/training-materials.yml

@@ -116,3 +116,15 @@ jobs:
             full-autotools-labs.pdf
             autotools-agenda.pdf
             autotools-labs.tar.xz
+  preempt-rt:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ./.github/actions/build-material-action
+        with:
+          entrypoint: /usr/bin/make
+          args: >
+            full-preempt-rt-slides.pdf
+            full-preempt-rt-labs.pdf
+            preempt-rt-online-agenda.pdf
+            preempt-rt-online-fr-agenda.pdf