ci: force pip install with --upgrade-strategy=eager (#20958)

Author: Borda

.azure/gpu-tests-pytorch.yml

@@ -134,7 +134,7 @@ jobs:
       - bash: |
           set -e
           extra=$(python -c "print({'lightning': 'pytorch-'}.get('$(PACKAGE_NAME)', ''))")
-          pip install -e ".[${extra}dev]" -U --extra-index-url="${TORCH_URL}"
+          pip install -e ".[${extra}dev]" -U --upgrade-strategy=eager --extra-index-url="${TORCH_URL}"
         displayName: "Install package & dependencies"
 
       - bash: pip uninstall -y lightning

.github/workflows/ci-tests-fabric.yml

@@ -138,7 +138,8 @@ jobs:
       - name: Install package & dependencies
         timeout-minutes: 20
         run: |
-          pip install -e ".[${EXTRA_PREFIX}test,${EXTRA_PREFIX}strategies]" -U --prefer-binary \
+          pip install -e ".[${EXTRA_PREFIX}test,${EXTRA_PREFIX}strategies]" \
+            -U --upgrade-strategy=eager --prefer-binary \
             --extra-index-url="${TORCH_URL}" --find-links="${PYPI_CACHE_DIR}"
           pip list
       - name: Dump handy wheels

.github/workflows/ci-tests-pytorch.yml

@@ -136,7 +136,8 @@ jobs:
       - name: Install package & dependencies
         timeout-minutes: 20
         run: |
-          pip install ".[${EXTRA_PREFIX}extra,${EXTRA_PREFIX}test,${EXTRA_PREFIX}strategies]" -U --prefer-binary \
+          pip install ".[${EXTRA_PREFIX}extra,${EXTRA_PREFIX}test,${EXTRA_PREFIX}strategies]" \
+            -U --upgrade-strategy=eager --prefer-binary \
             -r requirements/_integrations/accelerators.txt \
             --extra-index-url="${TORCH_URL}" --find-links="${PYPI_CACHE_DIR}"
           pip list