TemplateParser: Improve cache integrity check failure scenario

TemplateParser: Improve cache integrity check failure scenario

Previously, if the cache integrity check failed then it would emit a
warning but then continue to use the code. The integrity check could
genuinely fail if the secret key was changed, if the cache was
truncated, or other edge case scenarios.

Now TemplateParser will recompile if the cache fails the integrity
check, and then update the cache with the newly compiled version.

Bug: T163154
Change-Id: I9a6c8d528f84cfbabf402cfaf6468c162fab1f15