[deps] Fixes premature bump to py312

Turns out our deployment uses python 3.11, so we need to roll back
the pillow and pendulum upgrades so they work with python 3.11 ... how
irritating to have all this version bump nonesense.

pyproject.toml

@@ -5,7 +5,7 @@ description = ""
 authors = ["Colin Powell <colin@unbl.ink>"]
 
 [tool.poetry.dependencies]
-python = ">=3.9,<4.0"
+python = ">=3.9,<3.12"
 Django = "^4.0.3"
 django-extensions = "^3.1.5"
 python-dateutil = "^2.8.2"
@@ -16,7 +16,7 @@ httpx = "<=0.27.2"
 djangorestframework = "^3.13.1"
 Markdown = "^3.3.6"
 django-filter = "^21.1"
-Pillow = "^11.1.0"
+Pillow = "^9.0.1"
 psycopg2 = "^2.9.3"
 dj-database-url = "^0.5.0"
 django-mathfilters = "^1.0.0"
@@ -41,7 +41,7 @@ beautifulsoup4 = "^4.11.2"
 django-storages = "^1.13.2"
 stream-sqlite = "^0.0.41"
 ipython = "^8.14.0"
-pendulum = "^3.0.0"
+pendulum = "^2.1.2"
 trafilatura = "^1.6.3"
 django-imagekit = "^5.0.0"
 thefuzz = "^0.22.1"