meson: Add test dependencies for test_json_parser

This is required to ensure correct test dependencies, previously
the test binaries would not necessarily be built.

The missing dependency was, e.g., visible when doing
  ninja clean && ninja meson-test-prereq && m test --no-rebuild --suite setup --suite test_json_parser

Apply this to all branches with meson support, as part of an effort to fix
incorrect test dependencies that can lead to test failures.

Author: Peter Eisentraut <peter@eisentraut.org>
Author: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CAGECzQSvM3iSDmjF+=Kof5an6jN8UbkP_4cKKT9w6GZavmb5yQ@mail.gmail.com
Discussion: https://postgr.es/m/bdba588f-69a9-4f3e-9b95-62d07210a32e@eisentraut.org
Backpatch: 17-, where test_json_parser was added

Author: anarazel

src/test/modules/test_json_parser/meson.build

@@ -49,5 +49,9 @@ tests += {
       't/003_test_semantic.pl',
       't/004_test_parser_perf.pl'
     ],
+    'deps': [
+      test_json_parser_incremental,
+      test_json_parser_perf,
+    ],
   },
 }