Revert "Don't use setup-python action"

This reverts commit 47b28be.

Author: dandavison

.github/workflows/build-binaries.yml

@@ -30,6 +30,9 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: recursive
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
 
       # Install Rust locally for non-Linux (Linux uses an internal docker
       # command to build with cibuildwheel which uses rustup install defined

.github/workflows/ci.yml

@@ -38,6 +38,9 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           workspaces: temporalio/bridge -> target
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
       - uses: arduino/setup-protoc@v3
         with:
           # TODO(cretz): Can upgrade proto when https://github.com/arduino/setup-protoc/issues/99 fixed

.github/workflows/run-bench.yml

@@ -35,6 +35,9 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           workspaces: temporalio/bridge -> target
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
       - uses: arduino/setup-protoc@v3
         with:
           # TODO(cretz): Can upgrade proto when https://github.com/arduino/setup-protoc/issues/99 fixed