fix: Bug where the ca key was being persisted to disk instead of client/server

Also fixes naming of some variables leftover from bad copy-paste.

internal/clis/hmpki/generate_ca.go

@@ -64,13 +64,13 @@ var generateCACmd = &cobra.Command{
 		})
 
 		// Write ca to disk.
-		cafn := path.Join(OutDir, Name+"_ca.crt")
+		cafn := path.Join(OutDir, Name+".crt")
 		err = createFileWith(cafn, caPEMBytes, pki.CertFilePerms)
 		if err != nil {
 			return err
 		}
 		// Write private key to disk.
-		keyfn := path.Join(OutDir, Name+"_ca.key")
+		keyfn := path.Join(OutDir, Name+".key")
 		err = createFileWith(keyfn, pki.MarshalKeyToPEM(key), pki.PrivateKeyFilePerms)
 		if err != nil {
 			return err