github: workflow improvements (#3032)

* github: compact build: status reporting step
* github: build: matrix strategy
* debugging
* github: added version_token to /uploadfiles request
* github: reworked main build flow
* github: suppressed non-zero cp status
* github: build: fixed comment lookup; experimental changes to apps build order
* github: removed summary step for compact builds; united map analyzer steps
* fbt: added get_apiversion target; moved ext apps processing logic to AppBuildset
* ufbt: added missing global
* fbt: Moved incompatible app list to firmware config output
* fbt: cleaner extapps processing
* github: build: added automation for SDK publishing

scripts/fbt/sdk/cache.py

@@ -255,3 +255,18 @@ class SdkCache:
         self.sync_sets(self.sdk.headers, api.headers, False)
         self.sync_sets(self.sdk.functions, api.functions)
         self.sync_sets(self.sdk.variables, api.variables)
+
+
+class LazySdkVersionLoader:
+    def __init__(self, sdk_path: str):
+        self.sdk_path = sdk_path
+        self._version = None
+
+    @property
+    def version(self) -> SdkVersion:
+        if self._version is None:
+            self._version = SdkCache(self.sdk_path, load_version_only=True).version
+        return self._version
+
+    def __str__(self) -> str:
+        return str(self.version)