CI: PostmarketOS: add pull ci

Signed-off-by: Vasiliy Doylov <nekocwd@mainlining.org>

.forgejo/workflows/pmbootstrap.yaml

@@ -0,0 +1,25 @@
+name: PostmarketOS build instrumentary update
+on:
+  schedule:
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+
+jobs:
+  pull-pmbootstrap:
+    name: Update Pmbootstrap
+    runs-on: Pmbootstrap
+    steps:
+      - name: Pull pmbootstrap from mirror
+        run: cd /data/pmbootstrap && git fetch && git reset --hard origin/master
+  pull-pmaports:
+    name: Update PostamrketOS aports
+    runs-on: Pmbootstrap
+    steps:
+      - name: Pull pmaports from mirror
+        run: cd /data/pmaports && git fetch && git reset --hard origin/master
+  pull-aports:
+    name: Update Alpine aports
+    runs-on: Pmbootstrap
+    steps:
+      - name: Pull aports from mirror
+        run: cd /data/aports && git fetch && git reset --hard origin/master