fix: update wezterm installation method due to broken COPR #530

Job	Run time
Build Custom Image (recipe-dx-surface.yml)	12m 39s
Build Custom Image (recipe-dx-hwe.yml)	11m 15s
Build Custom Image (recipe-dx-hwe-nvidia.yml)	12m 29s
Build Custom Image (recipe-dx-hwe-nvidia.yml)	11m 50s
Build Custom Image (recipe-dx-surface.yml)	13m 39s
Build Custom Image (recipe-dx-hwe.yml)	12m 18s
	1h 14m 10s

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