Add gRPC-based IR loader

[Lipen]

This PR adds the Protobuf-based EtsIR loader using the local ArkAnalyzer gRPC server.

[github-actions]

Lifecycle test results

0 tests   - 78   0 ✅  - 78   0s ⏱️ - 1m 28s
0 suites  -  7   0 💤 ± 0 
0 files    -  7   0 ❌ ± 0 

Results for commit a0f4da2. ± Comparison against base commit 126a4e8.

♻️ This comment has been updated with latest results.

[github-actions]

Test results on JDK 8

0 files   -  72  0 suites   - 72   0s ⏱️ - 4m 58s
0 tests  - 633  0 ✅  - 620  0 💤  - 13  0 ❌ ±0 
0 runs   - 705  0 ✅  - 692  0 💤  - 13  0 ❌ ±0 

Results for commit a0f4da2. ± Comparison against base commit 126a4e8.

♻️ This comment has been updated with latest results.

[github-actions]

Test results on JDK 19

 73 files  +1   73 suites  +1   5m 6s ⏱️ +11s
636 tests +3  624 ✅ +1  12 💤 +2  0 ❌ ±0 
708 runs  +3  696 ✅ +1  12 💤 +2  0 ❌ ±0 

Results for commit a0f4da2. ± Comparison against base commit 126a4e8.

♻️ This comment has been updated with latest results.

[github-actions]

Test results on JDK 11

 73 files  +1   73 suites  +1   5m 38s ⏱️ +2s
636 tests +3  626 ✅ +1  10 💤 +2  0 ❌ ±0 
708 runs  +3  698 ✅ +1  10 💤 +2  0 ❌ ±0 

Results for commit a0f4da2. ± Comparison against base commit 126a4e8.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

Attention: Patch coverage is 38.03828% with 259 lines in your changes missing coverage. Please review.

Project coverage is 69.73%. Comparing base (126a4e8) to head (a0f4da2).

Files with missing lines	Patch %	Lines
...ets/src/main/kotlin/org/jacodb/ets/grpc/Convert.kt	37.43%	208 Missing and 46 partials ⚠️
.../src/main/kotlin/org/jacodb/ets/grpc/GrpcClient.kt	58.33%	5 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                neo     #318      +/-   ##
============================================
- Coverage     70.63%   69.73%   -0.91%     
+ Complexity     2460     2454       -6     
============================================
  Files           275      277       +2     
  Lines         15268    15686     +418     
  Branches       2267     2343      +76     
============================================
+ Hits          10784    10938     +154     
- Misses         3569     3787     +218     
- Partials        915      961      +46     

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