message: Mark PHP 7.4 as Security fixes only in README
diff: @@ -111,7 +111,7 @@ On all supported OS/Platforms the following PHP versions are supported as per th
  |`7.1`|`Stable`|`End of life`|`GitHub-hosted`, `self-hosted`|
  |`7.2`|`Stable`|`End of life`|`GitHub-hosted`, `self-hosted`|
  |`7.3`|`Stable`|`Security fixes only`|`GitHub-hosted`, `self-hosted`|
  -|`7.4`|`Stable`|`Active`|`GitHub-hosted`, `self-hosted`|
  +|`7.4`|`Stable`|`Security fixes only`|`GitHub-hosted`, `self-hosted`|
  |`8.0`|`Stable`|`Active`|`GitHub-hosted`, `self-hosted`|
  |`8.1`|`Stable`|`Active`|`GitHub-hosted`, `self-hosted`|
  |`8.2`|`Nightly`|`In development`|`GitHub-hosted`, `self-hosted`|
  