(fix) Change version numbers to 0.6.4 in setup.py and README file in preparation for next release

Author: abel

README.md

@@ -87,7 +87,7 @@ make tests
 ```
 
 ### Changelogs
-**0.6.4**(change before release)
+**0.6.4**
 * Change logging logic to use different loggers for each module and class
 * Solved issue preventing requesting spot and derivative historical orders for more than one market_id
 * Add `pytest` as a development dependency to implement and run unit tests

setup.py

@@ -17,7 +17,7 @@
 EMAIL = "[email protected]"
 AUTHOR = "Injective Labs"
 REQUIRES_PYTHON = ">=3.7, <3.11"
-VERSION = "0.6.4-pre"
+VERSION = "0.6.4"
 
 REQUIRED = [
     "protobuf",