Fixes numpy ver to <2 for isaaclab_rl and isaaclab_tasks (#2866)

# Description

This PR fixes the numpy version get upgraded to >2 when installing
rl_packages dependencies

## Type of change

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applicable. -->

- Bug fix (non-breaking change which fixes an issue)

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## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

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source/isaaclab_rl/setup.py

@@ -19,7 +19,7 @@ EXTENSION_TOML_DATA = toml.load(os.path.join(EXTENSION_PATH, "config", "extensio
 # Minimum dependencies required prior to installation
 INSTALL_REQUIRES = [
     # generic
-    "numpy",
+    "numpy<2",
     "torch==2.5.1",
     "torchvision>=0.14.1",  # ensure compatibility with torch 1.13.1
     "protobuf>=3.20.2,!=5.26.0",

source/isaaclab_tasks/setup.py

@@ -18,7 +18,7 @@ EXTENSION_TOML_DATA = toml.load(os.path.join(EXTENSION_PATH, "config", "extensio
 # Minimum dependencies required prior to installation
 INSTALL_REQUIRES = [
     # generic
-    "numpy",
+    "numpy<2",
     "torch==2.5.1",
     "torchvision>=0.14.1",  # ensure compatibility with torch 1.13.1
     "protobuf>=3.20.2,!=5.26.0",