[CI] Add --only-binary :all: when running pip

.circleci/config.yml

@@ -64,7 +64,9 @@ commands:
     steps:
       - run:
           name: pip install
-          command: << parameters.python >> -m pip install -r requirements-dev.txt
+          # The --only-binary :all: flag tells python not to ever build any
+          # extensio code locally, and instead only download pre-built wheels.
+          command: "<< parameters.python >> -m pip install --only-binary :all: -r requirements-dev.txt"
   install-rust:
     steps:
       - run:

.github/workflows/ci.yml

@@ -54,7 +54,7 @@ jobs:
         run: |
           which python3
           python3 --version
-          python3 -m pip install -r requirements-dev.txt
+          python3 -m pip install --only-binary :all: -r requirements-dev.txt
       - name: Check test expectations on target branch
         # Skip this step for rebaseline PRs, since the target branch is expected
         # to be out of date in this case.

.github/workflows/rebaseline-tests.yml

@@ -36,7 +36,7 @@ jobs:
         run: |
           which python3
           python3 --version
-          python3 -m pip install -r requirements-dev.txt
+          python3 -m pip install --only-binary :all: -r requirements-dev.txt
       - name: Rebaseline tests
         env:
           REF_NAME: ${{ github.ref_name }}

.github/workflows/roll-emsdk.yml

@@ -33,7 +33,7 @@ jobs:
         run: |
           which python3
           python3 --version
-          python3 -m pip install -r requirements-dev.txt
+          python3 -m pip install --only-binary :all: -r requirements-dev.txt
       - name: Roll emsdk and rebaseline tests
         env:
           REF_NAME: ${{ github.ref_name }}

.github/workflows/update-website.yml

@@ -31,7 +31,7 @@ jobs:
         run: |
           which python3
           python3 --version
-          python3 -m pip install -r requirements-dev.txt
+          python3 -m pip install --only-binary :all: -r requirements-dev.txt
       - name: Update docs
         run: |
           set -o errexit

requirements-dev.txt

@@ -4,7 +4,7 @@
 # the codebase and generate docs using Sphinx, not for users of emscripten.
 # Install with `pip3 install -r requirements-dev.txt`
 
-coverage[toml]==6.5
+coverage[toml]==7.15.0
 mypy==1.14
 psutil==7.0.0
 ruff==0.15.7