Update key generation in validator manager (#7548)

#7518 breaks the key generation process in `validator_manager/test_vectors/generate.py` after updating to `ethstaker-deposit-cli`. This PR updates the key generation process, tested and successfully generated the deposit data JSON files.

validator_manager/test_vectors/generate.py

@@ -71,9 +71,9 @@ def setup_sdc():
     ], cwd=sdc_git_dir)
     assert(result.returncode == 0)
     result = subprocess.run([
-        "python",
-        "setup.py",
+        "pip",
         "install",
+        ".",
     ], cwd=sdc_git_dir)
     assert(result.returncode == 0)
 
@@ -100,7 +100,9 @@ def sdc_generate(network, first_index, count, eth1_withdrawal_address=None):
         '--num_validators', str(count),
         '--mnemonic', TEST_MNEMONIC,
         '--chain', network,
-        '--keystore_password', 'MyPassword',
+        '--keystore_password', 'MyPassword1234', # minimum 12 characters for password
+        '--withdrawal_address', '', # no withdrawal address set so it maintains 0x00 withdrawal credentials
+        '--regular-withdrawal', # no compounding
         '--folder', os.path.abspath(output_dir),
     ] + eth1_flags