Release v1.30.0

Changes

• (WIP) Implement Generics API @jinzhu (#7424)
• perf(schema): avoid redundant strings.ToLower call @1911860538 (#7464)
• fix: return init dialector error @codingplz (#7379)
• perf: break early on match failure in ParseConstraint @1911860538 (#7402)
• feat: error message show field name @pi12138 (#7452)
• perf: use strings.IndexByte to replace strings.Index @1911860538 (#7454)
• perf: use strings.Cut to replace strings.SplitN @1911860538 (#7455)