fix(schematics): log the caught error when dataconnect.yaml parsing fails (#3711)

The catch handler names its error variable _ but logs e, which is not
defined anywhere. When a malformed dataconnect.yaml lands in this
handler, evaluating e throws a ReferenceError from inside the catch —
so instead of warning and continuing with null, the whole schematic
crashes with an unrelated-looking error. Nothing typechecks this file
today (the library build excludes the schematics and esbuild does not
check types), which is how the undefined identifier survived.

Author: armando-navarro

src/schematics/utils.ts

@@ -375,7 +375,7 @@ export function parseDataConnectConfig(
       package: connectorJson.generate.javascriptSdk.package,
       angular: connectorJson.generate.javascriptSdk.angular,
     };
-  } catch (_) {
+  } catch (e) {
     console.error("Couldn't parse dataconnect.yaml", e);
     return null;
   }