Misc M1 fixes (#4)

python3 in swiftc stub, bazel 5, fix bazelrc

Author: jerrymarino

Diff for: .bazelrc

@@ -10,5 +10,4 @@ build \
  --strategy=SwiftCompile=worker \
  --swiftcopt=-Xwrapped-swift=-debug-prefix-pwd-is-dot \
  --experimental_strict_action_env=true \
- --cpu darwin_x86_64 \
  --experimental_show_artifacts

Diff for: .bazelversion

@@ -1 +1 @@
-3.4.1
+5.0.0

Diff for: XCHammerAssets/swiftc_stub.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 try:
     from typing import List
 except ImportError:

Diff for: sample/UrlGet/.bazelversion

@@ -0,0 +1 @@
+5.0.0