fix(app-shell): run python in isolated mode (#13901)

This prevents python from picking up versions of dependencies installed
on the system, which will break offline analysis if the dependencies
installed globally are old.

app-shell/src/protocol-analysis/executeAnalyzeCli.ts

@@ -9,6 +9,7 @@ export function executeAnalyzeCli(
   sourcePaths: string[]
 ): Promise<void> {
   return execa(pythonPath, [
+    '-I',
     '-m',
     'opentrons.cli',
     'analyze',