chore(api): add API version 2.19 (#15302)

This carves out a 2.19 API version that will contain updated tip overlap
data.

Closes EXEC-452

Author: sfoster1

api/src/opentrons/protocols/api_support/definitions.py

@@ -1,6 +1,6 @@
 from .types import APIVersion
 
-MAX_SUPPORTED_VERSION = APIVersion(2, 18)
+MAX_SUPPORTED_VERSION = APIVersion(2, 19)
 """The maximum supported protocol API version in this release."""
 
 MIN_SUPPORTED_VERSION = APIVersion(2, 0)