chore(deps): update dependency asyncpg to v0.27.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
asyncpg	==0.26.0 -> ==0.27.0

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Release Notes

MagicStack/asyncpg

v0.27.0

Compare Source

Support Python 3.11 and PostgreSQL 15. This release also drops support
for Python 3.6.

Changes

• Add arm64 mac and linux wheels
  (by @​ddelange in 7bd6c49 for #​954)

• Add Python 3.11 to the test matrix
  (by @​elprans in 5f908e6 for #​948)

• Exclude .venv from flake8 (#​958)
  (by @​jparise in 40b16ea for #​958)

• Upgrade to flake8 5.0.4 (from 3.9.2) (#​961)
  (by @​jparise in 0e73fec for #​961)

• Show an example of a custom Record class (#​960)
  (by @​jparise in 84c99bf for #​960)

• Use the exact type name in Record.repr (#​959)
  (by @​jparise in eccdf61 for #​959)

• Drop Python 3.6 support (#​940)
  (by @​bryanforbes in bb0cb39 for #​940)

• Test on Python 3.11 and PostgreSQL 15, fix workflow deprecations (#​968)
  (by @​elprans in eab7fdf for #​968)

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