Fix OAuthBearer OIDC preprocessor directive when using CMake without CURL

[emasab]

Closes #5135

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[Copilot]

Pull Request Overview

This PR adds a faster “quick” test runner configuration, updates plugin support detection in tests, fixes the OAuthBearer OIDC include guard, and extends the build‐configuration checks script to support both Make and CMake inside Docker.

• Added a new quick brokerless test case in tests/CMakeLists.txt
• Introduced runtime skip logic for unsupported plugin.library.paths tests in tests/0066-plugins.cpp
• Switched #ifdef WITH_OAUTHBEARER_OIDC to #if WITH_OAUTHBEARER_OIDC in src/rdkafka_conf.c
• Enhanced build-configurations-checks.sh to accept a build tool and optional Docker image, with corresponding updates in .semaphore/semaphore.yml

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/CMakeLists.txt	Added RdKafkaTestBrokerLessQuick test target
tests/0066-plugins.cpp	Wrapped plugin.path set in a skip condition for unsupported builds
src/rdkafka_conf.c	Changed OIDC preprocessor to #if for proper zero/one testing
packaging/tools/build-configurations-checks.sh	Generalized to handle make or cmake modes and Docker images
.semaphore/semaphore.yml	Invokes the updated script with explicit tool/image combinations

[Copilot]

Rather than relying on the enum-to-bool conversion in if (conf->set(...)), explicitly compare the result to RdKafka::Conf::CONF_OK (or the appropriate error code) to make the intent clear.

Suggested change

	"interceptor_test/interceptor_test_dummy", errstr) &&
	"interceptor_test/interceptor_test_dummy", errstr) == RdKafka::Conf::CONF_OK &&

[Copilot]

[nitpick] The same error message literal is repeated twice; consider extracting it into a named constant to avoid duplication and simplify future updates.

Suggested change

	errstr.find(
	"Configuration property \"plugin.library.paths\" not supported") !=
	std::string::npos) {
	delete conf;
	Test::Skip(
	"Configuration property \"plugin.library.paths\" not supported in this "
	"build\n");
	errstr.find(PLUGIN_PATHS_ERROR) != std::string::npos) {
	delete conf;
	Test::Skip(tostr() << PLUGIN_PATHS_ERROR << " in this build\n");