reduce number of signers and keys so test doesn't consume all available file descriptors

Author: xoloki

testnet/stacks-node/src/tests/signer.rs

@@ -200,8 +200,8 @@ fn test_stackerdb_dkg() {
         .init();
 
     // Generate Signer Data
-    let num_signers: u32 = 100;
-    let num_keys: u32 = 4000;
+    let num_signers: u32 = 10;
+    let num_keys: u32 = 400;
     let publisher_private_key = StacksPrivateKey::new();
     let signer_stacks_private_keys = (0..num_signers)
         .map(|_| StacksPrivateKey::new())