Provide versionless package for all php module packages

Most php modules are provided both as php81-module-name and as php-module-name. Some of them do not have a versionless package though, the full list is below:

• php81-brotli-0.11.1-r0
• php81-pecl-amqp-1.11.0-r0
• php81-pecl-apcu-5.1.22-r0
• php81-pecl-ast-1.1.0-r0
• php81-pecl-couchbase-4.0.0-r1
• php81-pecl-event-3.0.8-r1
• php81-pecl-igbinary-3.2.12-r0
• php81-pecl-imagick-3.7.0-r0
• php81-pecl-imagick-dev-3.7.0-r0
• php81-pecl-lzf-1.7.0-r0
• php81-pecl-mailparse-3.1.4-r0
• php81-pecl-maxminddb-1.11.0-r0
• php81-pecl-msgpack-2.2.0_rc2-r0
• php81-pecl-memcache-8.0-r0
• php81-pecl-memcached-3.2.0-r0
• php81-pecl-mongodb-1.15.0-r0
• php81-pecl-protobuf-3.21.7-r0
• php81-pecl-psr-1.2.0-r0
• php81-pecl-rdkafka-6.0.3-r0
• php81-pecl-redis-5.3.7-r0
• php81-pecl-ssh2-1.3.1-r0
• php81-pecl-swoole-5.0.1-r0
• php81-pecl-swoole-dev-5.0.1-r0
• php81-pecl-uploadprogress-2.0.2-r0
• php81-pecl-uploadprogress-doc-2.0.2-r0
• php81-pecl-uuid-1.2.0-r0
• php81-pecl-vips-1.0.13-r0
• php81-pecl-xdebug-3.2.0-r0
• php81-pecl-xhprof-2.3.9-r0
• php81-pecl-xhprof-assets-2.3.9-r0
• php81-pecl-yaml-2.2.2-r0
• php81-pecl-zstd-0.12.0-r0

Feel free to edit that as you add the corresponding provides.