chore: Update jitsi-xmpp-exceptions, jicoco.'

[bgrozev]

• Use smack-4.4.8-jitsi-1.
• ref: Use getMetrics(accepts), parse Accept header.
• chore: Update jitsi-xmpp-extensions and jicoco.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 17 lines in your changes missing coverage. Please review.

Project coverage is 19.32%. Comparing base (205d097) to head (07b2ef6).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...ain/java/org/jitsi/jigasi/rest/MetricsHandler.java	0.00%	17 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #595      +/-   ##
============================================
- Coverage     19.37%   19.32%   -0.05%     
+ Complexity      312      311       -1     
============================================
  Files            83       83              
  Lines          7127     7135       +8     
  Branches        941      940       -1     
============================================
- Hits           1381     1379       -2     
- Misses         5519     5528       +9     
- Partials        227      228       +1     

Files with missing lines	Coverage Δ
...ain/java/org/jitsi/jigasi/rest/MetricsHandler.java	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 205d097...07b2ef6. Read the comment docs.

🚀 New features to boost your workflow:

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