serde-json-core v0.7.0

Breaking

• MSRV is now 1.87.0.

Added

• Implement defmt::Format for EscapedStr, EscapedStringFragment and StringUnescapeError.
• Implement Default for EscapedStr (returning an empty string).

Changed

• Updated heapless to version 0.9.2.
• Updated defmt to version 1.0.1.