Update dependencies: Warning RedisCache.php(135): Deprecated - Function Redis::delete() is deprecated about component-cache

[peter279k]

@tsteur, to resolve this issue, it should upgrade the doctrine/cache to 1.8 version at least.

But the doctrine/cache version requires php-7.1 at least.

I think it should drop the php-5.x and php-7.0 versions if we want to resolve this issue.

[peter279k]

The references are available here:

• https://github.com/doctrine/cache/blob/1.8.x/composer.json
• https://github.com/doctrine/cache/blob/1.8.x/lib/Doctrine/Common/Cache/RedisCache.php#L134

[peter279k]

I think this issue should be closed since the PR #24 is merged.

@tsteur It seems like this was fixed however not included in 3.13.1 even though the README says it was. Specifically, in unzip Matomo 3.13.1 and view the file: "Common/Cache/RedisCache.php" includes "$this->redis->delete" and not the corrected code: "$this->redis->del". Perhaps an incorrect branch of "cache" was used to build Matomo 3.13.1?