Demote the log entry about expiring shapes from notice to info

[alco]

There's little use for this message in our observability platform, it's mostly noise.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.06%. Comparing base (4c52d76) to head (bd5ad7c).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4275      +/-   ##
==========================================
- Coverage   63.19%   63.06%   -0.13%     
==========================================
  Files         199      184      -15     
  Lines       20491    19932     -559     
  Branches     4956     4962       +6     
==========================================
- Hits        12949    12571     -378     
+ Misses       7539     7358     -181     
  Partials        3        3              

Flag	Coverage Δ
electric-telemetry	?
elixir	?
packages/agents	61.19% <ø> (ø)
packages/agents-runtime	79.23% <ø> (ø)
packages/agents-server	66.03% <ø> (ø)
packages/agents-server-ui	1.64% <ø> (ø)
packages/electric-ax	38.59% <ø> (ø)
packages/experimental	87.73% <ø> (ø)
packages/react-hooks	86.48% <ø> (ø)
packages/start	82.83% <ø> (ø)
packages/typescript-client	94.27% <ø> (ø)
packages/y-electric	56.05% <ø> (ø)
typescript	63.06% <ø> (ø)
unit-tests	63.06% <ø> (-0.13%)	⬇️

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