Update convert_case crate from 0.6 to 0.7 version (#436)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

impl/Cargo.toml

@@ -26,7 +26,7 @@ proc-macro = true
 proc-macro2 = "1.0"
 quote = "1.0"
 syn = "2.0.45"
-convert_case = { version = "0.6", optional = true }
+convert_case = { version = "0.7", optional = true }
 unicode-xid = { version = "0.2.2", optional = true }
 
 [build-dependencies]