Upgrade PHP (->7.1) and phpPgAdmin (->7.12.1)

[wapmorgan]

Reinstall some packages and use specific version.

[atkrad]

@wapmorgan Thanks for your contribution.
Sorry for the delayed response. I think we should update the base image to support newer PHP versions so I want to create a new repository (dockage/nginx-php-fpm) and support various os distribution such as Alpine, Debian, Ubuntu, etc and also the new image supports various PHP versions such as 7.1, 7.2, 7.3 and 7.4. if you are agree with me I'll close the pull request.

[wapmorgan]

I agree, but how time it will take?

[atkrad]

Thank you, utmost one week.

[GeorgeWL]

this still seems to be an issue,I'm unable to browse databases at all because of this

[wapmorgan]

So, what?

[Vaviloff]

Still is an issue, unfortunately.

[wapmorgan]

Any updates?

[ngosang]

Since this is abandon and the latest release is not working with Postgres 12 I made my own image.
Maybe some of you want to:

• take some ideas and update this image
• or help to make an official phppgadmin image in => Official Docker image phppgadmin/phppgadmin#144

[romw314]

#6 should fix it for Postgres 16.