#5768 Upgrade to latest simple-java-mail and switch to jakarta.mail

[Thopap]

Upgrading javasimplemail to most recent version which use jakarta.mail api's.
Greenmail was updated as well to provide compatiblity during testing.

Because jakarta.mail api's are also packaged within java simplemail, it need to be excluded by default to avoid duplicated classes on the classpath.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.54%. Comparing base (406db33) to head (6c4b50e).
Report is 28 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##             master    #6261    +/-   ##
==========================================
  Coverage     83.54%   83.54%            
- Complexity    27432    27543   +111     
==========================================
  Files          1707     1715     +8     
  Lines        106185   106659   +474     
  Branches      13397    13429    +32     
==========================================
+ Hits          88710    89108   +398     
- Misses        11750    11799    +49     
- Partials       5725     5752    +27     

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[Thopap]

Any Chance zu get a review for my PR? (@jamesagnew or @tadgh ?)

[tadgh]

Looks good, but this will require a version bump as it breaks the API. Since this is passing all tests, I'll take over from here to effect a version bump, and add a changelog. Are you OK with being credited as your github ID, real name, and organization?

You can expect this to be shipped in our official november release (7.6.0)

[Thopap]

@tadgh Thank you for considering this PR and performing the next steps for this. I am fine with mentioning my github ID and real name, but skip the organization.