Upgrades from 15.0.11 -> 15.1.[0-1] can fail due to template parsing

[ryanemerson]

The operator upgrades are failing fairly regular now when upgrading from 15.0.x -> 15.1.0. The root cause of the issue is that we removed the server templates in 15.1.x. As a consequence, the testsuite is hitting infinispan#13519 when we start the 15.1.x servers as the invalidation templates are now being parsed using the CacheParser not the Parser.

14:57:27,432 FATAL (main) [org.infinispan.SERVER] ISPN080028: Infinispan Server failed to start org.infinispan.manager.EmbeddedCacheManagerStartupException: ISPN000327: Cannot find a parser for element 'invalidation-cache-configuration' in namespace '' at [1,203]. Check that your configuration is up-to-date for Infinispan '15.1.0.Final' and you have the proper dependency in the classpath
    at org.infinispan.manager.DefaultCacheManager.internalStart(DefaultCacheManager.java:786)
    at org.infinispan.manager.DefaultCacheManager.start(DefaultCacheManager.java:751)
    at org.infinispan.server.SecurityActions.lambda$startCacheManager$0(SecurityActions.java:42)
    at org.infinispan.security.Security.doPrivileged(Security.java:62)
    at org.infinispan.server.SecurityActions.startCacheManager(SecurityActions.java:44)
    at org.infinispan.server.Server.run(Server.java:442)
    at org.infinispan.server.Bootstrap.runInternal(Bootstrap.java:184)
    at org.infinispan.server.tool.Main.run(Main.java:98)
    at org.infinispan.server.Bootstrap.main(Bootstrap.java:67)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at org.infinispan.server.loader.Loader.run(Loader.java:104)
    at org.infinispan.server.loader.Loader.main(Loader.java:49)
Caused by: org.infinispan.commons.CacheConfigurationException: ISPN000327: Cannot find a parser for element 'invalidation-cache-configuration' in namespace '' at [1,203]. Check that your configuration is up-to-date for Infinispan '15.1.0.Final' and you have the proper dependency in the classpath
    at org.infinispan.configuration.parsing.ParserRegistry.parseCacheName(ParserRegistry.java:223)
    at org.infinispan.configuration.parsing.ParserRegistry.findNamespaceParser(ParserRegistry.java:249)
    at org.infinispan.configuration.parsing.ParserRegistry.parseElement(ParserRegistry.java:210)
    at org.infinispan.configuration.parsing.ParserRegistry.parse(ParserRegistry.java:196)
    at org.infinispan.globalstate.impl.GlobalConfigurationManagerImpl.buildConfiguration(GlobalConfigurationManagerImpl.java:338)
    at org.infinispan.globalstate.impl.GlobalConfigurationManagerImpl.createTemplateLocally(GlobalConfigurationManagerImpl.java:298)
    at org.infinispan.globalstate.impl.GlobalConfigurationManagerImpl.lambda$start$0(GlobalConfigurationManagerImpl.java:137)
    at org.infinispan.cache.impl.EncoderCache.lambda$forEach$10(EncoderCache.java:892)
    at java.base/java.util.concurrent.ConcurrentMap.forEach(ConcurrentMap.java:122)
    at org.infinispan.cache.impl.AbstractDelegatingCache.forEach(AbstractDelegatingCache.java:479)
    at org.infinispan.cache.impl.AbstractDelegatingCache.forEach(AbstractDelegatingCache.java:479)
    at org.infinispan.cache.impl.EncoderCache.forEach(EncoderCache.java:889)
    at org.infinispan.globalstate.impl.GlobalConfigurationManagerImpl.start(GlobalConfigurationManagerImpl.java:129)
    at org.infinispan.globalstate.impl.CorePackageImpl$2.start(CorePackageImpl.java:61)
    at org.infinispan.globalstate.impl.CorePackageImpl$2.start(CorePackageImpl.java:48)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.invokeStart(BasicComponentRegistryImpl.java:616)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.doStartWrapper(BasicComponentRegistryImpl.java:607)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:576)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.running(BasicComponentRegistryImpl.java:807)
    at org.infinispan.factories.AbstractComponentRegistry.internalStart(AbstractComponentRegistry.java:370)
    at org.infinispan.factories.AbstractComponentRegistry.start(AbstractComponentRegistry.java:243)
    at org.infinispan.manager.DefaultCacheManager.internalStart(DefaultCacheManager.java:783)
    ... 12 more

As we can't modify the already shipped 15.1.0 and 15.1.1 servers we need to workaround this by:

1. Releasing 15.1.2.Final with a fix for infinispan#13519
2. Release Operator 2.4.9 with skips defined for 2.4.7 and 2.4.8

Step 2 will ensure that so users upgrade directly from Operator 2.4.6 (15.0.11.Final default image) to 2.4.9 (15.1.2.Final default), therefore bypassing the parser issue.