[ISSUE #9794] Change JDK prerequisite from 1.7+ to 1.8+ in documentation

[yx9o]

Fixes #9794 .

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 48.27%. Comparing base (204b251) to head (efd20d4).

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #9795      +/-   ##
=============================================
- Coverage      48.36%   48.27%   -0.10%     
+ Complexity     12244    12220      -24     
=============================================
  Files           1314     1314              
  Lines          93668    93668              
  Branches       12011    12011              
=============================================
- Hits           45301    45216      -85     
- Misses         42771    42844      +73     
- Partials        5596     5608      +12     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.