CI: Set cache-downloads to false to speedup the "Setup Micromamba" step (#2946)

Author: seisman

.github/workflows/ci_docs.yml

@@ -72,7 +72,7 @@ jobs:
             channels:
               - conda-forge
               - nodefaults
-          cache-downloads: true
+          cache-downloads: false
           cache-environment: true
           create-args: >-
             python=3.12

.github/workflows/ci_tests.yaml

@@ -101,7 +101,7 @@ jobs:
             channels:
               - conda-forge
               - nodefaults
-          cache-downloads: true
+          cache-downloads: false
           cache-environment: true
           create-args: >-
             python=${{ matrix.python-version }}${{ matrix.optional-packages }}

.github/workflows/ci_tests_dev.yaml

@@ -95,7 +95,7 @@ jobs:
             channels:
               - conda-forge
               - nodefaults
-          cache-downloads: true
+          cache-downloads: false
           cache-environment: true
           create-args: >-
             python=3.12

.github/workflows/ci_tests_legacy.yaml

@@ -59,7 +59,7 @@ jobs:
             channels:
               - conda-forge
               - nodefaults
-          cache-downloads: true
+          cache-downloads: false
           cache-environment: true
           create-args: >-
             python=3.9