Bump shivammathur/setup-php from 2.21.0 to 2.28.0

[dependabot]

Bumps shivammathur/setup-php from 2.21.0 to 2.28.0.

Release notes

Sourced from shivammathur/setup-php's releases.

2.28.0

Changelog

• Specifying 8.3 in php-version now installs a stable build of PHP 8.3.

- name: Setup PHP 8.3
  uses: shivammathur/setup-php@v2
  with:
    php-version: '8.3'

• Specifying latest in php-version now installs PHP 8.3 as well.

- name: Setup Latest PHP
  uses: shivammathur/setup-php@v2
  with:
    php-version: 'latest'

• Specifying nightly in php-version now installs PHP 8.4.

- name: Setup Nightly PHP
  uses: shivammathur/setup-php@v2
  with:
    php-version: 'nightly'

• Added support for intl extension with ICU 74.1 (shivammathur/icu-intl#7)

- name: Setup PHP with intl
  uses: shivammathur/setup-php@v2
  with:
    php-version: '8.3'
    extensions: intl-74.1

• Added support to specify zts in phpts environment variable instead of ts to set up thread-safe PHP on Linux and Windows.

- name: Setup PHP 8.3 (ZTS)
  uses: shivammathur/setup-php@v2
  with:
    php-version: '8.3'
  env:
    phpts: zts

• Fixed support for debug builds. (#784)

- name: Setup PHP 8.3
  uses: shivammathur/setup-php@v2
</tr></table> 

... (truncated)

Commits

• e6f7513 Update phpts section in README
• 1874353 Fix linking grpc on macos but installed along protoc
• eea39ea Disable xdebug and pcov when blackfire extension is installed
• bac56c8 Add patch for geos
• 124d256 Add back support for nightly builds on self-hosted
• eeddcfe Bump version to 2.28.0
• de2903a Fix installing zts builds
• bbe1204 Use cached builds for zts
• 99a92d5 Test cache for PHP 8.3 and PHP 8.4
• 7c6c249 Mark PHP 8.3 as stable
• Additional commits viewable in compare view

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Superseded by #130.