Update legacy page bloom blob and add 8.19 to URL mappings (#1646)

Author: cotti

config/legacy-url-mappings.yml

@@ -4,7 +4,7 @@
 # TODO: Refactor the model, for now we just use the first element as current version
 #############################################
 
-stack: &stack [ '9.0+', '8.18', '8.17', '8.16', '8.15', '8.14', '8.13', '8.12', '8.11', '8.10', '8.9', '8.8', '8.7', '8.6', '8.5', '8.4', '8.3', '8.2', '8.1', '8.0', '7.17' ]
+stack: &stack [ '9.0+', '8.19', '8.18', '8.17', '8.16', '8.15', '8.14', '8.13', '8.12', '8.11', '8.10', '8.9', '8.8', '8.7', '8.6', '8.5', '8.4', '8.3', '8.2', '8.1', '8.0', '7.17' ]
 
 mappings:
   en/apm/agent/android/: [ '1.0.0' , '0.x' ]