Bump the rails gem minimum for CVEs

[Fryguy]

This is mostly for Mend, but it also enforces the minimum secure version.

[Fryguy]

@Fryguy A conflict occurred during the backport of this pull request to radjabov.

If this pull request is based on another pull request that has not been marked for backport, add the appropriate labels to the other pull request. Otherwise, please create a new pull request direct to the radjabov branch in order to resolve this.

Conflict details:

diff --cc manageiq-schema.gemspec
index 8504448,ceaecc2..0000000
--- a/manageiq-schema.gemspec
+++ b/manageiq-schema.gemspec
@@@ -23,7 -23,7 +23,11 @@@ Gem::Specification.new do |spec
    spec.add_dependency "manageiq-password",       ">= 1.2.0", "< 2"
    spec.add_dependency "more_core_extensions",    ">= 3.5", "< 5"
    spec.add_dependency "pg"
++<<<<<<< HEAD
 +  spec.add_dependency "rails",                   ">=6.0.4", "<7.1"
++=======
+   spec.add_dependency "rails",                   ">=7.0.8.5", "<8.0"
++>>>>>>> 075a130 (Merge pull request #762 from Fryguy/bump_for_cves)
  
    spec.add_development_dependency "manageiq-style", ">= 1.5.2"
    spec.add_development_dependency "rspec"

[Fryguy]

I'm going to unmark this for backport and do it after the merge of master into the branch.