fix: replace vulnerable container bases and release v0.1.21

pigway_frame_flow/models.py

@@ -366,7 +366,7 @@ class SettingsView(BaseModel):
 
 class Health(BaseModel):
     status: str
-    version: str = "0.1.20"
+    version: str = "0.1.21"
 
 
 class Readiness(BaseModel):
@@ -397,7 +397,7 @@ class RestoreRequest(StrictModel):
 
 class Version(BaseModel):
     product: str = "PIGWay Frame Flow"
-    version: str = "0.1.20"
+    version: str = "0.1.21"
     api_version: str = "v1"
     commit: str = "development"
     build_time: str = "unknown"