[Matter_idl] Add to flake8 in workflow and fix python files (part #25193)

[DamMicSzm]

This pull request is a part of #25193 ( part fix python files in Matter_idl )

Problem

Python files need prevent things like syntax errors, typos, bad style, etc... it saves time for reviewing your code. Many python files needed bug fixes.

Changes

Fix all python files in Matter_idl where linter find problem. Adding Matter_idl to check with flake8.

Testing

CI will test and maybe some another manual testing

[github-actions]

PR #25272: Size comparison from 7e728bc to 70ce16b

Decreases (1 build for cc32xx)

platform	target	config	section	7e728bc	70ce16b	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	20249763	20249762	-1	-0.0

Full report (1 build for cc32xx)

platform	target	config	section	7e728bc	70ce16b	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	642569	642569	0	0.0
			(read/write)	203664	203664	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197064	197064	0	0.0
			.comment	194	194	0	0.0
			.data	1480	1480	0	0.0
			.debug_abbrev	930138	930138	0	0.0
			.debug_aranges	87272	87272	0	0.0
			.debug_frame	299764	299764	0	0.0
			.debug_info	20249763	20249762	-1	-0.0
			.debug_line	2655140	2655140	0	0.0
			.debug_loc	2795460	2795460	0	0.0
			.debug_ranges	281592	281592	0	0.0
			.debug_str	3018033	3018033	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	105817	105817	0	0.0
			.shstrtab	232	232	0	0.0
			.stab	204	204	0	0.0
			.stabstr	441	441	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	377761	377761	0	0.0
			.symtab	256256	256256	0	0.0
			.text	534628	534628	0	0.0