v0.6.15

Belated release notes for 0.6.15. This was a quick patch release to incorporate two changes, one to improve rust-analyzer support and the other to switch from the unmaintained proc-macro-error to proc-macro-error2 per RUSTSEC.

What's Changed

• [0.6] fix: Rust-Analyzer hover information / redundant spans by @chrisp60 in #2840
• leptos 0.6: Switch to proc-macro-error2 to address unmaintained security advisory. by @azriel91 in #2935

Full Changelog: v0.6.14...v0.6.15