fix source bashrc for run

sky/backends/cloud_vm_ray_backend.py

@@ -3287,7 +3287,8 @@ def _exec_code_on_head(
  returncode, stdout, stderr = self.run_on_head(handle,
  job_submit_cmd,
  stream_logs=False,
- require_outputs=True)
+ require_outputs=True,
+ source_bashrc=True)
 
  # Happens when someone calls `sky exec` but remote is outdated
  # necessitating calling `sky launch`.
@@ -4233,6 +4234,9 @@ def run_on_head(
  process_stream: Whether to post-process the stdout/stderr of the
  command, such as replacing or skipping lines on the fly. If
  enabled, lines are printed only when '\r' or '\n' is found.
+ source_bashrc: Whether to source bashrc when running on the command
+ on the VM. If it is a user-related commands, it would always be
+ good to source bashrc to make sure the env vars are set.
 
  Returns:
  returncode