Disable pypi for merge workflows + fix trainer tests (#2153)

* Disable workflows for PR + merge

* skorch

* Fix transformers tests too

.github/workflows/integration_tests.yml

@@ -25,11 +25,6 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
-      matrix:
-        transformers-version: [
-          pypi,
-          github
-        ]
     steps:
     - uses: actions/checkout@v3.1.0
     - name: Set up python 3.8
@@ -47,9 +42,6 @@ jobs:
         cd ..
         git clone https://github.com/huggingface/transformers
         cd transformers
-        if [[ ${{ matrix.transformers-version }} = pypi ]]; then 
-          git checkout $(git describe --tags `git rev-list --tags --max-count=1`)
-        fi
         pip install .[torch,testing]
 
     - name: Show installed libraries

.github/workflows/self_hosted_integration_tests.yml

@@ -29,10 +29,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        transformers-version: [
-          pypi,
-          github
-        ]
         cuda_visible_devices: [
           "0", 
           "0,1"
@@ -51,11 +47,9 @@ jobs:
         run: |
           source activate accelerate
           git config --global --add safe.directory '*'
-          git checkout main && git pull && git fetch --tags
-          if [[ ${{ matrix.transformers-version }} = pypi ]]; then 
-            git checkout $(git tag --sort=taggerdate | tail -1)
-          fi
+          git checkout main && git pull
           pip install .[torch,deepspeed-testing]
+          pip uninstall comet_ml wandb -y
       
       - name: Show installed libraries
         run: |
@@ -82,13 +76,13 @@ jobs:
           pytest -sv tests/deepspeed
 
       - name: Run transformers examples tests
-        working-directory: transformers/examples/pytorch
+        working-directory: transformers/
         env:
           CUDA_VISIBLE_DEVICES: ${{ matrix.cuda_visible_devices }}
           WANDB_DISABLED: true
         run: |
-          pip install -r _tests_requirements.txt
-          cd ../../
+          source activate accelerate
+          pip install -r examples/pytorch/_tests_requirements.txt
           pytest -sv examples/pytorch/test_accelerate_examples.py examples/pytorch/test_pytorch_examples.py
 
   run-skorch-tests:
@@ -98,11 +92,6 @@ jobs:
     runs-on: [self-hosted, docker-gpu, multi-gpu, gcp]
     strategy:
       fail-fast: false
-      matrix:
-        skorch-version: [
-          pypi,
-          github
-        ]
     steps:
       - name: Update accelerate clone and pip install
         working-directory: accelerate/
@@ -118,9 +107,6 @@ jobs:
           source activate accelerate
           git config --global --add safe.directory '*'
           git checkout master && git pull
-          if [[ ${{ matrix.skorch-version }} = pypi ]]; then 
-            git checkout $(git describe --tags `git rev-list --tags --max-count=1`)
-          fi
           pip install .[testing]
           pip install flaky