Bump version to 0.27.0

This change bumps the crate to version 0.27.0. The following notable
changes have been made since 0.26.2:
- Added support for overwriting default realtime data bar, quote, and
  trade types
- Added support for working with custom v2 realtime data streaming URLs
- Added FillOrKill and ImmediateOrCancel variants to
  api::v2::order::TimeInForce type
- Changed various data::v2::stream::{Bar, Quote, Trade} members from
  u64 to Num
- Switched to using new stream authentication request message format
- Adjusted publish workflow to also create GitHub release and Git tag

Author: d-e-s-o

CHANGELOG.md

@@ -1,11 +1,11 @@
-Unreleased
-----------
+0.27.0
+------
 - Added support for overwriting default realtime data bar, quote, and
   trade types
 - Added support for working with custom v2 realtime data streaming URLs
 - Added `FillOrKill` and `ImmediateOrCancel` variants to
   `api::v2::order::TimeInForce` type
-- Changed various `data::v2::stream::{Bar, Quote, Trade}` member from
+- Changed various `data::v2::stream::{Bar, Quote, Trade}` members from
   `u64` to `Num`
 - Switched to using new stream authentication request message format
 - Adjusted publish workflow to also create GitHub release and Git tag

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "apca"
-version = "0.26.2"
+version = "0.27.0"
 edition = "2021"
 rust-version = "1.59"
 authors = ["Daniel Mueller <deso@posteo.net>"]