Roll back to known working requirement versions

requirements.in

@@ -1,6 +1,13 @@
-camelot-py[cv]==0.11.0
+# excalibur requires an older version of flask
+# the older version of flask requires click<8
+# pip-tools 6.10.0 was the last version to specify click<8
+# so if you need to use pip-tools:
+# pip install pip-tools==6.10.0
+
+camelot-py==0.9.0
 celery==5.1.2
 excalibur-py==0.4.3
 flask==1.1.4
 markupsafe==2.0.1
+pypdf2<3
 waitress

requirements.txt

@@ -1,17 +1,16 @@
 #
-# This file is autogenerated by pip-compile with Python 3.9
-# by the following command:
+# This file is autogenerated by pip-compile with python 3.9
+# To update, run:
 #
 #    pip-compile
 #
 amqp==5.1.1
     # via kombu
 billiard==3.6.4.0
     # via celery
-camelot-py[cv]==0.11.0
+camelot-py[cv]==0.9.0
     # via
     #   -r requirements.in
-    #   camelot-py
     #   excalibur-py
 celery==5.1.2
     # via
@@ -32,7 +31,6 @@ click==7.1.2
     #   click-repl
     #   excalibur-py
     #   flask
-    #   pdftopng
 click-didyoumean==0.3.0
     # via celery
 click-plugins==1.1.1
@@ -51,8 +49,6 @@ flask==1.1.4
     # via
     #   -r requirements.in
     #   excalibur-py
-ghostscript==0.7
-    # via camelot-py
 greenlet==2.0.2
     # via sqlalchemy
 itsdangerous==1.1.0
@@ -78,14 +74,14 @@ pandas==1.5.3
     # via camelot-py
 pdfminer-six==20221105
     # via camelot-py
-pdftopng==0.2.3
-    # via camelot-py
 prompt-toolkit==3.0.38
     # via click-repl
 pycparser==2.21
     # via cffi
-pypdf==3.17.2
-    # via camelot-py
+pypdf2==2.12.1
+    # via
+    #   -r requirements.in
+    #   camelot-py
 python-dateutil==2.8.2
     # via pandas
 pytz==2022.7.1
@@ -98,11 +94,9 @@ six==1.16.0
     #   python-dateutil
 sqlalchemy==2.0.4
     # via excalibur-py
-tabulate==0.9.0
-    # via camelot-py
 typing-extensions==4.5.0
     # via
-    #   pypdf
+    #   pypdf2
     #   sqlalchemy
 vine==5.0.0
     # via