do not change directory for parse command

[gyorb]

the parse command changes directory to working_directory from metadata.json before parsing the plist files
why is this needed?

If a compressed report directory is sent to another user the parse will not work.

[csordasmarton]

It was implemented in #639 and it works the same now:

codechecker/analyzer/codechecker_analyzer/cmd/parse.py

Lines 672 to 678 in 12fedce

	try:
	os.chdir(working_dir)
	except OSError as oerr:
	LOG.debug(oerr)
	LOG.error("Working directory %s is missing.\n"
	"Can not parse reports safely.", working_dir)
	sys.exit(1)

I do not now what was the reason behind this but I removed it in #2616.

[gyorb]

Could that be the original reason if there is some relative file path in the report it can not be parsed?
Usually the file path in the reports are relative if the include paths or the file path is relative in the compile command database. If there are only absolute paths everything should be absolute in the generated reports.