[1.x] maint: Add missing dependencies to micromamba's environment spe…

…cification (#3603)

Signed-off-by: Julien Jerphanion <git@jjerphan.xyz>
Co-authored-by: Hind Montassif <hind.montassif@gmail.com>

micromamba/environment-dev.yml

@@ -21,6 +21,8 @@ dependencies:
   - pytest-asyncio
   - pytest-xprocess
   - conda-package-handling
+  - requests
+  - zstandard
   - pyyaml
   - spdlog
   - fmt