Add dependabot and cap dependencies (#287)

### Description

To ensure that users can create functioning environments, this PR adds
an upper version to all main dependencies and adds a `dependabot` to
update them.

### Changes Made

- **Added**: `dependabot.yml`
- **Modified**: `pyproject.toml`

### Note

We will need to update the `conda-forge` feedstock to reflect the new
dependencies.

---

**Please ensure your PR meets the following requirements:**

- [x] Code builds and passes tests locally, including doctests
- [ ] New tests have been added (for bug fixes/features)
- [x] Pre-commit passes
- [ ] PR to the documentation exists (for bug fixes / features)

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    # Files stored in repository root
+    directory: "/"
+    schedule:
+      interval: "daily"
+      time: "08:00"
+    groups:
+      python-packages:
+        patterns:
+          - "*"

pyproject.toml

@@ -43,14 +43,14 @@ classifiers = [
 ]
 dependencies = [
     'numpy<2.0.0',
-    'torch>=2.0.0',
-    'torchvision',
-    'bioimageio.core>=0.7.0',
-    'tifffile',
-    'psutil',
+    'torch>=2.0,<=2.5',
+    'torchvision<=0.20',
+    'bioimageio.core==0.7',
+    'tifffile<=2024.8.30',
+    'psutil<=6.1',
     'pydantic>=2.5,<2.9',
-    'pytorch_lightning>=2.2.0',
-    'pyyaml',
+    'pytorch_lightning>=2.2,<=2.4',
+    'pyyaml<=6.0.2,!=6.0.0',
     'typer==0.12.3',
     'scikit-image<=0.23.2',
     'zarr<3.0.0',