Issue #12606 Adding warning logs about the deprecation of [...]/Tests/FormIntegration...
minor #12680 Issue #12606 Adding warning logs about the deprecation of [...]/Tests/FormIntegration... (csuarez)

This PR was squashed before being merged into the 2.7 branch (closes #12680).

Discussion
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Issue #12606 Adding warning logs about the deprecation of [...]/Tests/FormIntegration...

This fixes Issue #12606

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | yes
| Tests pass?   | yes
| Fixed tickets | #12606
| License       | MIT
| Doc PR        | x

Commits
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2267749 Issue #12606 Adding warning logs about the deprecation of [...]/Tests/FormIntegration...