Bump minimum required server version

[ZetaTom]

Bump minimum server version in accordance with Nextcloud files client.

[github-actions]

SpotBugs

Category	Base	New
Bad practice	35	35
Correctness	34	34
Dodgy code	26	26
Internationalization	6	6
Malicious code vulnerability	49	49
Multithreaded correctness	3	3
Performance	8	8
Total	161	161

[github-actions]

SpotBugs

Category	Base	New
Bad practice	35	35
Correctness	34	34
Dodgy code	26	26
Internationalization	6	6
Malicious code vulnerability	49	49
Multithreaded correctness	3	3
Performance	8	8
Total	161	161

[github-actions]

SpotBugs

Category	Base	New
Bad practice	35	35
Correctness	34	34
Dodgy code	26	26
Internationalization	6	6
Malicious code vulnerability	49	49
Multithreaded correctness	3	3
Performance	8	8
Total	161	161

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 22.74%. Comparing base (7e5ea7e) to head (e204d9a).
Report is 7 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1645      +/-   ##
============================================
- Coverage     22.74%   22.74%   -0.01%     
  Complexity      638      638              
============================================
  Files           222      222              
  Lines          8410     8407       -3     
  Branches       1099     1099              
============================================
- Hits           1913     1912       -1     
+ Misses         6305     6303       -2     
  Partials        192      192              

Files with missing lines	Coverage Δ
.../android/lib/resources/status/OwnCloudVersion.java	62.29% <ø> (+1.35%)	⬆️