Bump asyncpg from 0.18.3 to 0.21.0

requirements.in

@@ -1,4 +1,4 @@
-asyncpg==0.18.3
+asyncpg==0.21.0
 click==7.0
 flake8==3.6.0
 mypy==0.630

requirements.txt

@@ -4,24 +4,51 @@
 #
 #    pip-compile --output-file requirements.txt requirements.in
 #
-asyncpg==0.18.3
-certifi==2018.11.29       # via requests
-cffi==1.11.5              # via pynacl
-chardet==3.0.4            # via requests
+asyncpg==0.21.0
+    # via -r requirements.in
+certifi==2018.11.29
+    # via requests
+cffi==1.11.5
+    # via pynacl
+chardet==3.0.4
+    # via requests
 click==7.0
+    # via -r requirements.in
 flake8==3.6.0
-geojson==2.4.1            # via pyowm
-idna==2.8                 # via requests
-mccabe==0.6.1             # via flake8
+    # via -r requirements.in
+geojson==2.4.1
+    # via pyowm
+idna==2.8
+    # via requests
+mccabe==0.6.1
+    # via flake8
 mypy-extensions==0.4.1
+    # via
+    #   -r requirements.in
+    #   mypy
 mypy==0.630
-pycodestyle==2.4.0        # via flake8
-pycparser==2.19           # via cffi
-pyflakes==2.0.0           # via flake8
+    # via -r requirements.in
+pycodestyle==2.4.0
+    # via flake8
+pycparser==2.19
+    # via cffi
+pyflakes==2.0.0
+    # via flake8
 pynacl==1.3.0
+    # via -r requirements.in
 pyowm==2.10.0
+    # via -r requirements.in
 requests==2.21.0
-six==1.12.0               # via pynacl
-typed-ast==1.1.2          # via mypy
+    # via
+    #   -r requirements.in
+    #   pyowm
+six==1.12.0
+    # via pynacl
+typed-ast==1.1.2
+    # via mypy
 urllib3==1.24
+    # via
+    #   -r requirements.in
+    #   requests
 youtube_dl==2019.1.17
+    # via -r requirements.in