Bump pyyaml from 5.3.1 to 5.4 (#84)

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 5.3.1 to 5.4.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/master/CHANGES)
- [Commits](yaml/pyyaml@5.3.1...5.4)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Will Rice <will@spokestack.io>

Author: dependabot[bot]

docs/requirements.txt

@@ -55,14 +55,14 @@ six==1.15.0
 snowballstemmer==2.0.0
     # via sphinx
 sphinx-autobuild==0.7.1
-    # via -r requirements.in
+    # via -r docs/requirements.in
 sphinx-autodoc-typehints==1.11.0
-    # via -r requirements.in
+    # via -r docs/requirements.in
 sphinx-rtd-theme==0.5.0
-    # via -r requirements.in
+    # via -r docs/requirements.in
 sphinx==3.1.2
     # via
-    #   -r requirements.in
+    #   -r docs/requirements.in
     #   sphinx-autodoc-typehints
     #   sphinx-rtd-theme
 sphinxcontrib-applehelp==1.0.2
@@ -74,7 +74,7 @@ sphinxcontrib-htmlhelp==1.0.3
 sphinxcontrib-jsmath==1.0.1
     # via sphinx
 sphinxcontrib-napoleon==0.7
-    # via -r requirements.in
+    # via -r docs/requirements.in
 sphinxcontrib-qthelp==1.0.3
     # via sphinx
 sphinxcontrib-serializinghtml==1.1.4

requirements.txt

@@ -195,7 +195,7 @@ pytest==5.4.3
     #   pytest-watch
 pytz==2020.1
     # via google-api-core
-pyyaml==5.3.1
+pyyaml==5.4
     # via
     #   libcst
     #   pre-commit