test: remove mistral from smoke tests

The smoke tests for `mistral-large-2402` are failing because its responses for certain test cases
have changed since the initial golden files were generated. After a bit of investigation, it looks like
this model was deprecated in November 2024 and retired in June 2025. Also, from what I can tell,
contemporary Mistral models like `mistral-large-2411` and `mistral-medium-2505` don't actually make
the expected tool calls required to pass the GPTScript's smoke tests, so swapping out the model is not
feasible at this time.

In light of these findings, remove mistral from the set of smoke tested model providers.

Signed-off-by: Nick Hale <4175918+njhale@users.noreply.github.com>

Author: njhale

.github/workflows/smoke.yaml

@@ -147,34 +147,3 @@ jobs:
           echo "Running smoke test for model claude-3-5-sonnet-20240620"
           export PATH="$(pwd)/bin:${PATH}"
           make smoke
-
-  mistral-large-2402:
-    needs: check-label
-    if: ${{ needs.check-label.outputs.run_smoke_tests == 'true' }}
-    runs-on: ubuntu-22.04
-    steps:
-      - name: Checkout base repository
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 1
-      - name: Checkout PR code if running for a PR
-        if: ${{ github.event_name == 'pull_request_target' }}
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 1
-          repository: ${{ github.event.pull_request.head.repo.full_name }}
-          ref: ${{ github.event.pull_request.head.ref }}
-      - uses: actions/setup-go@v5
-        with:
-          cache: false
-          go-version: "1.21"
-      - env:
-          OPENAI_API_KEY: ${{ secrets.SMOKE_OPENAI_API_KEY }}
-          GPTSCRIPT_DEFAULT_MODEL: mistral-large-2402 from github.com/gptscript-ai/mistral-laplateforme-provider
-          MISTRAL_API_KEY: ${{ secrets.SMOKE_MISTRAL_API_KEY }}
-          GPTSCRIPT_CREDENTIAL_OVERRIDE: "github.com/gptscript-ai/mistral-laplateforme-provider/credential:MISTRAL_API_KEY"
-        name: Run smoke test for mistral-large-2402
-        run: |
-          echo "Running smoke test for model mistral-large-2402"
-          export PATH="$(pwd)/bin:${PATH}"
-          make smoke