chore(deps): update convert_case requirement from 0.6.0 to 0.7.1 #17

Job	Run time
FreeBSD-x86_64 with rust stable	15s
FreeBSD-x86_64 with rust nightly	17s
Linux-x86_64 with rust stable	1m 53s
Linux-x86_64 with rust nightly	50s
Linux-aarch64 with rust stable	1m 23s
Linux-aarch64 with rust nightly	1m 19s
Linux-arm with rust stable	1m 23s
Linux-arm with rust nightly	2m 0s
windows-aarch64 with rust stable	1m 46s
windows-aarch64 with rust nightly	1m 54s
windows-x86_64 with rust stable	1m 51s
windows-x86_64 with rust nightly	2m 14s
macos-x86_64 with rust stable	46s
macos-x86_64 with rust nightly	48s
macos-aarch64 with rust stable	21s
macos-aarch64 with rust nightly	23s
	19m 23s

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