BitcoinClient add get_block_height rpc method

[MdTeach]

Description

• Adds get_block_height method to BitcoinClient

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature/Enhancement (non-breaking change which adds functionality or enhances an existing one)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactor
• New or updated tests
• Dependency Update

Notes to Reviewers

Checklist

• I have performed a self-review of my code.
• I have commented my code where necessary.
• I have updated the documentation if needed.
• My changes do not introduce new warnings.
• I have added tests that prove my changes are effective or that my feature works.
• New and existing tests pass with my changes.

Related Issues

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.

Project coverage is 54.73%. Comparing base (95197d3) to head (9a9340e).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/btcio/src/rpc/client.rs	0.00%	7 Missing ⚠️
crates/btcio/src/test_utils.rs	0.00%	3 Missing ⚠️
bin/prover-client/src/operators/l1_batch.rs	0.00%	2 Missing ⚠️

@@            Coverage Diff             @@
##             main     #663      +/-   ##
==========================================
- Coverage   54.73%   54.73%   -0.01%     
==========================================
  Files         317      317              
  Lines       33939    33946       +7     
==========================================
+ Hits        18577    18579       +2     
- Misses      15362    15367       +5     

Files with missing lines	Coverage Δ
bin/prover-client/src/operators/l1_batch.rs	0.00% <0.00%> (ø)
crates/btcio/src/test_utils.rs	61.45% <0.00%> (-0.65%)	⬇️
crates/btcio/src/rpc/client.rs	84.94% <0.00%> (-0.93%)	⬇️

... and 4 files with indirect coverage changes

[prajwolrg]

LGTM!
Did you also try with bip34_block_height?

[github-actions]

Commit: b60eb6b

SP1 Performance Test Results

program	cycles	success
BTC_BLOCKSPACE	30,370,596	✅
EL_BLOCK	97,975	✅
CL_BLOCK	89,783	✅
L1_BATCH	30,419,814	✅
L2_BATCH	3,566	✅
CHECKPOINT	25,699	✅