Fixed pyi file build when OpenVINO_DIR is externally defined #4909

Job	Run time
cpp-beam_search_causal_lm-Phi-2	15m 30s
cpp-beam_search_causal_lm-Qwen1_5-7B-Chat	14m 31s
cpp-beam_search_causal_lm-ubuntu (./build/samples/cpp/beam_search_causal_lm/beam_search_causal_lm)	15m 56s
cpp-greedy_causal_lm-Qwen-7B-Chat	10m 38s
cpp-beam_search_causal_lm-ubuntu (python ./samples/python/beam_search_causal_lm/beam_search_causa...	16m 35s
cpp-greedy_causal_lm-windows	32m 19s
cpp-multinomial-greedy_causal_lm-ubuntu	17m 0s
cpp-beam_search_causal_lm-notus-7b-v1	13m 57s
cpp-chat_sample-ubuntu	16m 29s
cpp-continuous-batching-ubuntu	14m 34s
cpp-greedy_causal_lm-redpajama-3b-chat	15m 16s
cpp-Phi-1_5	7m 9s
cpp-speculative_decoding_lm-ubuntu	12m 29s
visual_language_chat_sample-ubuntu-internvl2	22m 33s
cpp-prompt_lookup_decoding_lm-ubuntu	12m 51s
visual_language_chat_sample-ubuntu-minicpm_v2_6	7m 24s
cpp-continuous-batching-macos	19m 24s
cpp-continuous-batching-windows	24m 7s
visual_language_chat_sample-ubuntu-llava_1_5 / visual_language_chat_sample-ubuntu-llava	30m 26s
visual_language_chat_sample-ubuntu-llava_next / visual_language_chat_sample-ubuntu-llava	35m 9s
ci/gha_overall_status_causal_lm	1s
	5h 54m 18s

Provide feedback