chore(deps): update dependency asyncpg to v0.27.0 (#520)

Author: renovate-bot

requirements-test.txt

@@ -15,6 +15,6 @@ types-mock==4.0.15.2
 twine==4.0.1
 PyMySQL==1.0.2
 pg8000==1.29.2
-asyncpg==0.26.0
+asyncpg==0.27.0
 python-tds==1.11.0
 aioresponses==0.7.3

setup.py

@@ -79,7 +79,7 @@
         "pymysql": ["PyMySQL==1.0.2"],
         "pg8000": ["pg8000==1.29.2"],
         "pytds": ["python-tds==1.11.0"],
-        "asyncpg": ["asyncpg==0.26.0"]
+        "asyncpg": ["asyncpg==0.27.0"]
     },
     python_requires=">=3.7",
     include_package_data=True,