chore(instrumentation-memcached): use exported strings for attributes

[maryliag]

Which problem is this PR solving?

• Part Of Update usage of semantic conventions to new exported strings #2025

Short description of the changes

On package opentelemetry-instrumentation-memcached:

• Update @opentelemetry/semantic-conventions ^1.23.0
• Use exported strings for Semantic Attributes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.47%. Comparing base (dfb2dff) to head (e1c7a09).
Report is 109 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2192      +/-   ##
==========================================
- Coverage   90.97%   90.47%   -0.51%     
==========================================
  Files         146      149       +3     
  Lines        7492     7592     +100     
  Branches     1502     1591      +89     
==========================================
+ Hits         6816     6869      +53     
- Misses        676      723      +47     

Files	Coverage Δ
...y-instrumentation-memcached/src/instrumentation.ts	96.22% <ø> (-0.21%)	⬇️
...entelemetry-instrumentation-memcached/src/utils.ts	80.00% <100.00%> (ø)

... and 34 files with indirect coverage changes