fix(gstd): Fix deadlocks in mutex/rw-lock (gear-tech#2906)

chore(versioning): Bump spec version to 210 (gear-tech#2884)

refactor(core-errors)!: New sys-call error representation (gear-tech#…

…2839)

runtime(gear,vara): Remove unused migrations (gear-tech#2728)

Add bad block for Vara spec (gear-tech#2619)

chore(cd): add git-cliff changelog to release body (gear-tech#2600)

Update `sccache` to v0.4.1 (gear-tech#2485)

[vara] Add ImOnline event handler to gear authorship (gear-tech#2461)

Add vara chain candidate json (gear-tech#2220)