CI: prefer diffusers-1.4 because it no longer requires a token

The RunwayML models still do.

.github/workflows/test-invoke-conda.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         stable-diffusion-model:
-          - 'diffusers-1.5'
+          - diffusers-1.4
         environment-yaml:
           - environment-lin-amd.yml
           - environment-lin-cuda.yml
@@ -61,10 +61,6 @@ jobs:
           path: ~/.cache/huggingface
           key: ${{ env.cache-name }}
 
-      - name: Check model availability
-        if: steps.cache-sd-model.outputs.cache-hit != true && env.HAVE_SECRETS != 'true'
-        run: echo -e '\a ⛔ GitHub model cache not found, and no HUGGINGFACE_TOKEN is available. Will not be able to load Stable Diffusion.' ; exit 1
-
       - name: Use cached conda packages
         id: use-cached-conda-packages
         uses: actions/cache@v3

.github/workflows/test-invoke-pip.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         stable-diffusion-model:
-          - diffusers-1.5
+          - diffusers-1.4
         requirements-file:
           - requirements-lin-cuda.txt
           - requirements-lin-amd.txt
@@ -60,10 +60,6 @@ jobs:
           path: ~/.cache/huggingface
           key: ${{ env.cache-name }}
 
-      - name: Check model availability
-        if: steps.cache-sd-model.outputs.cache-hit != true && env.HAVE_SECRETS != 'true'
-        run: echo -e '\a ⛔ GitHub model cache not found, and no HUGGINGFACE_TOKEN is available. Will not be able to load Stable Diffusion.' ; exit 1
-
       - name: set test prompt to main branch validation
         if: ${{ github.ref == 'refs/heads/main' }}
         run: echo "TEST_PROMPTS=tests/preflight_prompts.txt" >> $GITHUB_ENV

configs/models.yaml.example

@@ -5,11 +5,15 @@
 # model requires a model config file, a weights file,
 # and the width and height of the images it
 # was trained on.
+diffusers-1.4:
+  description: Diffusers version of Stable Diffusion version 1.4
+  format: diffusers
+  repo_name: CompVis/stable-diffusion-v1-4
+  default: true
 diffusers-1.5:
   description: Diffusers version of Stable Diffusion version 1.5
   format: diffusers
   repo_name: runwayml/stable-diffusion-v1-5
-  default: true
 stable-diffusion-1.5:
   description: The newest Stable Diffusion version 1.5 weight file (4.27 GB)
   weights: models/ldm/stable-diffusion-v1/v1-5-pruned-emaonly.ckpt