[sdk][bazel] Add flags to the ssh command in component_runner.

Use the StrictHostKeyChecking=no and UserKnownHostFile=/dev/null to
match the in-tree experience and prevent warnings when a device is
repaved with the same key.

Test: `bazel run` the same component across paving with the same ssh
       key.
Change-Id: Ia5f98845b003da934ae5e655d39b2f141f672b98
diff --git a/sdk/bazel/base/common/build_defs/internal/component_runner/component_runner.py b/sdk/bazel/base/common/build_defs/internal/component_runner/component_runner.py
index 38ea5b8..a067ab8 100644
--- a/sdk/bazel/base/common/build_defs/internal/component_runner/component_runner.py
+++ b/sdk/bazel/base/common/build_defs/internal/component_runner/component_runner.py
@@ -102,7 +102,12 @@
         stop_server = serve_package(args.pm, args.package, staging_dir)
         try:
             def run_ssh_command(*params, **kwargs):
-                base = ['ssh', '-i', args.ssh_key, 'fuchsia@'+target_address]
+                base = [
+                    'ssh', '-i', args.ssh_key,
+                    'fuchsia@' + target_address,
+                    '-o', 'StrictHostKeyChecking=no',
+                    '-o', 'UserKnownHostsFile=/dev/null',
+                ]
                 run_command(*(base + list(params)), **kwargs)
             server_address = 'http://%s:8083/config.json' % host_address
             run_ssh_command('amber_ctl', 'add_src', '-x', '-f', server_address)