Add missing update_rate config files for UR7e and UR12e

[urfeex]

As mentioned in #1542 the update rates for UR7e and UR12e are missing. This fixes that.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 16.16%. Comparing base (1b121b7) to head (544fd65).
⚠️ Report is 503 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##            main    #1544       +/-   ##
==========================================
+ Coverage   3.59%   16.16%   +12.57%     
==========================================
  Files         13       34       +21     
  Lines        947     3694     +2747     
  Branches     152      451      +299     
==========================================
+ Hits          34      597      +563     
- Misses       843     3080     +2237     
+ Partials      70       17       -53     

Flag	Coverage Δ
unittests	16.16% <ø> (+12.57%)	⬆️

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