Bump waitress from 2.0.0 to 2.1.0

Bumps [waitress](https://github.com/Pylons/waitress) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/Pylons/waitress/releases)
- [Changelog](https://github.com/Pylons/waitress/blob/master/CHANGES.txt)
- [Commits](Pylons/waitress@v2.0.0...v2.1.0)

---
updated-dependencies:
- dependency-name: waitress
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -17,7 +17,7 @@ cffi==1.14.6
 chardet==4.0.0
     # via
     #   camelot-py
-    #   pdfminer.six
+    #   pdfminer-six
 click==7.1.2
     # via
     #   camelot-py
@@ -36,7 +36,7 @@ click-repl==0.2.0
 configparser==3.5.3
     # via excalibur-py
 cryptography==3.4.8
-    # via pdfminer.six
+    # via pdfminer-six
 et-xmlfile==1.1.0
     # via openpyxl
 excalibur-py==0.4.3
@@ -64,7 +64,7 @@ openpyxl==3.0.7
     # via camelot-py
 pandas==1.3.5
     # via camelot-py
-pdfminer.six==20201018
+pdfminer-six==20201018
     # via camelot-py
 prompt-toolkit==3.0.20
     # via click-repl
@@ -83,15 +83,15 @@ six==1.16.0
     #   click-repl
     #   python-dateutil
 sortedcontainers==2.4.0
-    # via pdfminer.six
+    # via pdfminer-six
 sqlalchemy==1.4.28
     # via excalibur-py
 vine==5.0.0
     # via
     #   amqp
     #   celery
     #   kombu
-waitress==2.0.0
+waitress==2.1.0
     # via -r requirements.in
 wcwidth==0.2.5
     # via prompt-toolkit