chore: update PHP and SimpleSAMLphp versions in Dockerfile

[dionisio-bot]

Backport of #36412

[changeset-bot]

⚠️ No Changeset found

Latest commit: 48af755

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[dionisio-bot]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.66%. Comparing base (fe8bc08) to head (48af755).
Report is 1 commits behind head on release-7.7.5.

Additional details and impacted files

@@                Coverage Diff                @@
##           release-7.7.5   #36436      +/-   ##
=================================================
+ Coverage          64.23%   64.66%   +0.43%     
=================================================
  Files               3276     3259      -17     
  Lines              98317    96366    -1951     
  Branches           18779    18191     -588     
=================================================
- Hits               63153    62317     -836     
+ Misses             32187    31118    -1069     
+ Partials            2977     2931      -46     

Flag	Coverage Δ
e2e	58.42% <ø> (+0.78%)	⬆️
unit	71.53% <ø> (-0.02%)	⬇️

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[github-actions]

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