Use mediawiki-phan-config 0.16.0

The majority of issues were related to exception handling (unused
exception variable, missing @throws annotation etc), and straightforward
to fix.

Bug: T398459
Change-Id: I5a459fd4c45eb73439ade6cca29109370468a495

Author: jakobw

src/Deserializers/SnakDeserializer.php

@@ -168,7 +168,7 @@ private function needsDataTypeLookup( string $valueType ): bool {
 	private function deserializePropertyId( string $serialization ): PropertyId {
 		try {
 			$id = $this->propertyIdParser->parse( $serialization );
-		} catch ( EntityIdParsingException $ex ) {
+		} catch ( EntityIdParsingException ) {
 			throw new InvalidAttributeException(
 				'property',
 				$serialization,