Retroactively sign off Cristian's commits

[yshyn-iohk]

Proposed feature

@cristianIOHK, the commit with the following test must be contributed to the main branch:

---

I, Cristian Gonzalez, retroactively sign off on these commits:
commit a30ea01 chore: upgrade apollo version to 1.4.2 (#187)
commit 7fede0f chore: increase test coverage (#179)
commit 8bdb59b chore: update the publishing process for hyperledger (#184)
commit da747c5 fix: restore process duplicates did peers (#173)
commit 82b03cc fix: DbConnection cannot be extended (#169)
commit 390d988 docs: add code examples of new features (#166)

Signed-off-by: Cristian Gonzalez cristian.castro@iohk.io