Prepare 1.19.0 release (#456)

Signed-off-by: Appu Goundan <[email protected]>

Author: loosebazooka

Makefile

@@ -14,7 +14,7 @@
 
 # Bump these on release
 VERSION_MAJOR ?= 1
-VERSION_MINOR ?= 18
+VERSION_MINOR ?= 19
 VERSION_BUILD ?= 0
 
 VERSION ?= v$(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_BUILD)

RELEASING.md

@@ -5,5 +5,5 @@ Barebones releasing instructions
 - Update Makefile `VERSION_xxx` and submit changes
 - Tag the new release (at the above commit)
 - Tagging triggers a goreleaser build on github actions
-- Artifacts are automatically added to the github release 
+- Artifacts are automatically added to the github release
 - Container images are published to ghcr.io/googlecontainertools/container-structure-test (:latest, :<version>)