Remove experimental from embedded-registry flag

[dereknola]

Proposed Changes

• Move Spegel (embedded-registry) to GA status in CLI. Docs will be update according to note it went GA in December 2024 releases.

Types of Changes

CLI

Verification

k3s server --help shows embedded-registry no longer has the experimental tag

Testing

Linked Issues

TBD

User-Facing Change

Further Comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.62%. Comparing base (e9cf3a7) to head (4ecd4fa).
Report is 1 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (e9cf3a7) and HEAD (4ecd4fa). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (e9cf3a7)	HEAD (4ecd4fa)
e2etests	7	6

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #11443      +/-   ##
==========================================
- Coverage   47.66%   42.62%   -5.04%     
==========================================
  Files         181      181              
  Lines       18797    18797              
==========================================
- Hits         8960     8013     -947     
- Misses       8490     9583    +1093     
+ Partials     1347     1201     -146     

Flag	Coverage Δ
e2etests	34.83% <ø> (-7.98%)	⬇️
inttests	18.72% <ø> (-16.10%)	⬇️
unittests	14.26% <ø> (ø)

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