Typescript-Angular: Fix several query parameters serialization issues #138

Job	Run time
Build projects (20.x, samples/client/others/typescript-angular/)	1m 1s
Build projects (20.x, samples/client/petstore/typescript-angular-v16-provided-in-root/)	1m 47s
Build projects (20.x, samples/client/others/typescript-angular-v20/)	1m 11s
Build projects (20.x, samples/client/petstore/typescript-angular-v17-provided-in-root/)	1m 44s
Build projects (20.x, samples/client/petstore/typescript-angular-v18-provided-in-root/)	1m 43s
Build projects (20.x, samples/client/petstore/typescript-angular-v19-provided-in-root/)	2m 10s
Build projects (20.x, samples/openapi3/client/petstore/typescript/builds/browser/)	54s
Build projects (20.x, samples/client/petstore/typescript-fetch/builds/es6-target/)	55s
Build projects (20.x, samples/openapi3/client/petstore/typescript/builds/object_params/)	37s
Build projects (20.x, samples/client/petstore/typescript-fetch/builds/default/)	36s
Build projects (20.x, samples/openapi3/client/petstore/typescript/builds/default/)	53s
Build projects (20.x, samples/client/petstore/typescript-angular-v20-provided-in-root/)	1m 28s
Build projects (20.x, samples/client/petstore/typescript-fetch/builds/with-npm-version/)	57s
Build projects (20.x, samples/openapi3/client/petstore/typescript/builds/jquery/)	43s
Build projects (20.x, samples/client/petstore/typescript-axios/builds/with-npm-version/)	48s
Build projects (20.x, samples/client/petstore/typescript-fetch/tests/default/)	1m 12s
Build projects (20.x, samples/client/petstore/typescript-rxjs/builds/with-npm-version/)	45s
	19m 24s

Provide feedback