Added MAP_CONAN_HOME_TO_DOCKER_HOST env var

Author: SergeyKleyman

.ci/Makefile

@@ -20,6 +20,11 @@ ifeq ($(DOCKERFILE), Dockerfile.alpine)
     ADD_LIBUNWIND_DEPENDENCY_BUILD_ARG_OPT:=--build-arg ADD_LIBUNWIND_DEPENDENCY=${ADD_LIBUNWIND_DEPENDENCY}
 endif
 
+MAP_CONAN_HOME_TO_DOCKER_HOST_CMD_LINE_ARG:=
+ifdef MAP_CONAN_HOME_TO_DOCKER_HOST
+    MAP_CONAN_HOME_TO_DOCKER_HOST_CMD_LINE_ARG:=-v "${MAP_CONAN_HOME_TO_DOCKER_HOST}:/home/build/.conan"
+endif
+
 CURRENT_UID := $(shell id -u)
 CURRENT_GID := $(shell id -g)
 CURRENT_USER_HOME := $(shell echo ~)
@@ -46,8 +51,8 @@ build:
 	docker run --rm -t \
 		-u $(CURRENT_UID):$(CURRENT_GID) \
 		-v $(PWD):/source \
+		${MAP_CONAN_HOME_TO_DOCKER_HOST_CMD_LINE_ARG} \
 		-w /source/agent/native \
-		-e CONAN_USER_HOME=/tmp/conan \
 		elasticobservability/apm-agent-php-dev:native-build-gcc-12.2.0-$(BUILD_ARCHITECTURE)-0.0.2 \
 		sh -c "cmake --preset $(BUILD_ARCHITECTURE)-release && cmake --build --preset $(BUILD_ARCHITECTURE)-release && /source/agent/native/_build/$(BUILD_ARCHITECTURE)-release/ext/unit_tests/unit_tests"
 	@echo "::endgroup::"