Update heroku/buildpacks-python to v0.19.1 (#597)

## heroku/python

### Changed

- Updated pip from 24.2 to 24.3.1. ([#285](heroku/buildpacks-python#285))
- Updated Poetry from 1.8.3 to 1.8.4. ([#286](heroku/buildpacks-python#286))

Co-authored-by: heroku-linguist[bot] <136119646+heroku-linguist[bot]@users.noreply.github.com>

builder-20/builder.toml

@@ -43,7 +43,7 @@ version = "0.20.3"
 
 [[buildpacks]]
   id = "heroku/python"
-  uri = "docker://docker.io/heroku/buildpack-python@sha256:0a9ba174c59ecf8152d2140390e8ee60c10d21a0f736bd57b121887782b17149"
+  uri = "docker://docker.io/heroku/buildpack-python@sha256:af818cb05055e5e2a2748312a8d221576077c91e4e7a89755e4c26119b4afb46"
 
 [[buildpacks]]
   id = "heroku/ruby"
@@ -56,7 +56,7 @@ version = "0.20.3"
 [[order]]
   [[order.group]]
     id = "heroku/python"
-    version = "0.19.0"
+    version = "0.19.1"
   [[order.group]]
     id = "heroku/procfile"
     version = "3.1.2"

builder-22/builder.toml

@@ -47,7 +47,7 @@ version = "0.20.3"
 
 [[buildpacks]]
   id = "heroku/python"
-  uri = "docker://docker.io/heroku/buildpack-python@sha256:0a9ba174c59ecf8152d2140390e8ee60c10d21a0f736bd57b121887782b17149"
+  uri = "docker://docker.io/heroku/buildpack-python@sha256:af818cb05055e5e2a2748312a8d221576077c91e4e7a89755e4c26119b4afb46"
 
 [[buildpacks]]
   id = "heroku/ruby"
@@ -64,7 +64,7 @@ version = "0.20.3"
     optional = true
   [[order.group]]
     id = "heroku/python"
-    version = "0.19.0"
+    version = "0.19.1"
   [[order.group]]
     id = "heroku/procfile"
     version = "3.1.2"

builder-24/builder.toml

@@ -47,7 +47,7 @@ mirrors = ["public.ecr.aws/heroku/heroku:24"]
 
 [[buildpacks]]
   id = "heroku/python"
-  uri = "docker://docker.io/heroku/buildpack-python@sha256:0a9ba174c59ecf8152d2140390e8ee60c10d21a0f736bd57b121887782b17149"
+  uri = "docker://docker.io/heroku/buildpack-python@sha256:af818cb05055e5e2a2748312a8d221576077c91e4e7a89755e4c26119b4afb46"
 
 [[buildpacks]]
   id = "heroku/ruby"
@@ -64,7 +64,7 @@ mirrors = ["public.ecr.aws/heroku/heroku:24"]
     optional = true
   [[order.group]]
     id = "heroku/python"
-    version = "0.19.0"
+    version = "0.19.1"
   [[order.group]]
     id = "heroku/procfile"
     version = "3.1.2"