Swift: Update errors test

The representation of the errors seems to have changed somewhat in Swift 6.1.

Author: jketema

swift/ql/test/extractor-tests/errors/CONSISTENCY/CfgConsistency.expected

@@ -1,5 +1,3 @@
 deadEnd
-| file://:0:0:0:0 |  ... = ... |
-| file://:0:0:0:0 |  ... = ... |
 | unspecified.swift:12:20:12:21 | (...) |
 | unspecified.swift:25:9:28:9 | switch ErrorExpr { ... } |

swift/ql/test/extractor-tests/errors/Errors.expected

@@ -1,4 +1,5 @@
-| file://:0:0:0:0 | ... .combine(_:) | UnresolvedDotExpr |
+| file://:0:0:0:0 | <<error type>> | ErrorType |
+| file://:0:0:0:0 | <<error type>> | ErrorType |
 | file://:0:0:0:0 | <<error type>> | ErrorType |
 | overloaded.swift:6:5:6:5 | OverloadedDeclRefExpr | OverloadedDeclRefExpr |
 | unresolved.swift:5:1:5:14 | UnresolvedSpecializeExpr | UnresolvedSpecializeExpr |