CI: add patch to platformio

an ugly bug with LDF needs to be patched

.github/workflows/pio_build.yml

@@ -37,18 +37,6 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - name: PIP Cache
-        id: cache-pip
-        uses: actions/cache@v4
-        env:
-          cache-name: cache-pip-pkgs
-        with:
-          path: |
-            ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{env.cache-name}}
-          restore-keys: |
-            ${{ runner.os }}-pio-
-            ${{ runner.os }}-
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -57,7 +45,19 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install --upgrade platformio
+          #platformio run -t buildfs
           #platformio pkg update
+      - name: Patch Platformio
+        run: |
+          pwd
+          echo "REPO_NAME=$(basename ${{ github.repository }})" >> $GITHUB_ENV
+          cd $(dirname $(which pio) )
+          cd ../
+          echo $(find -type d -name site-packages)
+          cd   $(find -type d -name site-packages)
+          pwd
+          git apply --verbose $GITHUB_WORKSPACE/extra/0001-LDF-refresh-lib-dependency-after-recursive-search.patch
+          cd $GITHUB_WORKSPACE
       - name: Run PlatformIO
         run: |
           pio run -e espem -e espem_debug

extra/0001-LDF-refresh-lib-dependency-after-recursive-search.patch

@@ -0,0 +1,29 @@
+From 7d12a010a2a71428e6945c8c9c2d05073df379a2 Mon Sep 17 00:00:00 2001
+From: Emil Muratov <gpm@hotplug.ru>
+Date: Fri, 21 Jun 2024 17:01:38 +0900
+Subject: [PATCH] LDF: refresh lib dependency after recursive search
+
+LDF might mistakenly remove recursive dependency libs from a graph
+usually platform bundled ones
+
+Closes #4940
+---
+ platformio/builder/tools/piolib.py | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/platformio/builder/tools/piolib.py b/platformio/builder/tools/piolib.py
+index ca9c9f1..36b72d2 100644
+--- a/platformio/builder/tools/piolib.py
++++ b/platformio/builder/tools/piolib.py
+@@ -1159,6 +1159,8 @@ def ConfigureProjectLibBuilder(env):
+         for lb in lib_builders:
+             if lb in found_lbs:
+                 lb.search_deps_recursive(lb.get_search_files())
++        # refill found libs after recursive search
++        found_lbs = [lb for lb in lib_builders if lb.is_dependent]
+         for lb in lib_builders:
+             for deplb in lb.depbuilders[:]:
+                 if deplb not in found_lbs:
+-- 
+2.34.1
+