Use bitcoin-lib 0.48

[sstone]

bitcoin-lib 0.48 includes some API changes: some static methods in DeterminsticWallets have been removed, users should call instance methods instead

See ACINQ/bitcoin-lib#108

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.71%. Comparing base (129df36) to head (fa8c465).
⚠️ Report is 30 commits behind head on master.
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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3316      +/-   ##
==========================================
+ Coverage   88.67%   88.71%   +0.03%     
==========================================
  Files         221      222       +1     
  Lines       21453    21748     +295     
  Branches      832      873      +41     
==========================================
+ Hits        19023    19293     +270     
- Misses       2430     2455      +25     

Files with missing lines	Coverage Δ
...air/crypto/keymanager/LocalOnChainKeyManager.scala	86.11% <100.00%> (ø)

... and 12 files with indirect coverage changes

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