Disable testing with v1 main (#359)

Author: silvanocerza

.github/workflows/nightly.yml

@@ -23,7 +23,7 @@ jobs:
           # Get tutorial notebooks for v1
           VERSION=$(gh api /repos/deepset-ai/haystack/releases | \
             jq -r '[.[].tag_name | select(test("^v1.[0-9]+.[0-9]+$"))] | first')
-          NOTEBOOKS=$(python ./scripts/generate_matrix.py --haystack-version "$VERSION" --include-main)
+          NOTEBOOKS=$(python ./scripts/generate_matrix.py --haystack-version "$VERSION")
           echo "matrix_v1={\"include\":$NOTEBOOKS}" >> "$GITHUB_OUTPUT"
 
           # Get tutorial notebooks for v2

.github/workflows/run_tutorials_v1.yml

@@ -47,7 +47,7 @@ jobs:
           # Get tutorial notebooks for 1.x
           VERSION=$(gh api /repos/deepset-ai/haystack/releases | \
             jq -r '[.[].tag_name | select(test("^v1.[0-9]+.[0-9]+$"))] | first')
-          NOTEBOOKS=$(python ./scripts/generate_matrix.py --haystack-version "$VERSION" --include-main)
+          NOTEBOOKS=$(python ./scripts/generate_matrix.py --haystack-version "$VERSION")
           echo "matrix={\"include\":$NOTEBOOKS}" >> "$GITHUB_OUTPUT"
 
       - name: Get changed files