[dependabot skip] Update environment

Author: github-actions[bot]

environment.yml

@@ -64,5 +64,5 @@ dependencies:
   - sphinxdft =3.1  # [linux]
   - sqsgenerator =0.3
   - sysroot_linux-64 =2.17  # [linux]
-  - tensorflow =2.18.0  # [unix]
+  - tensorflow =2.20.0  # [unix]
   - wget =1.21.4  # [unix]