test: add didcomm test

[amagyar-iohk]

Description:

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Checklist:

• My PR follows the contribution guidelines of this project
• My PR is free of third-party dependencies that don't comply with the Allowlist
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• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
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[github-actions]

Unit Test Results

103 files  ±0  103 suites  ±0   20m 44s ⏱️ +26s
877 tests ±0  869 ✅ ±0  8 💤 ±0  0 ❌ ±0 
884 runs  ±0  876 ✅ ±0  8 💤 ±0  0 ❌ ±0 

Results for commit 4ad250c. ± Comparison against base commit 05fdf26.

♻️ This comment has been updated with latest results.

[coveralls]

coverage: 48.848%. remained the same
when pulling 4ad250c on tests/didcomm
into 05fdf26 on main.

[github-actions]

Integration Test Results

20 files  ±0  20 suites  ±0   3s ⏱️ ±0s
53 tests ±0  53 ✅ ±0  0 💤 ±0  0 ❌ ±0 
94 runs  ±0  94 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 4ad250c. ± Comparison against base commit 05fdf26.

♻️ This comment has been updated with latest results.