message: Mark PHP 7.3 as End of life in README
diff: @@ -110,7 +110,7 @@ On all supported OS/Platforms the following PHP versions are supported as per th
  |`7.0`|`Stable`|`End of life`|`GitHub-hosted`, `self-hosted`|
  |`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`|
  +|`7.3`|`Stable`|`End of life`|`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`|
  @@ -487,7 +487,7 @@ jobs:
  strategy:
  matrix:
  operating-system: ['ubuntu-latest', 'windows-latest', 'macos-latest']
  - php-versions: ['7.3', '7.4', '8.0']
  + php-versions: ['7.4', '8.0', '8.1']
  phpunit-versions: ['latest']
  include:
  - operating-system: 'ubuntu-latest'
  