array-record: Fix bazel-bootstrap env var name mismatch (#2125)

Author: luhenry

.github/workflows/build-array-record.yml

@@ -94,7 +94,7 @@ jobs:
           # (bazelbuild/bazel#23018). Any linux entry is a safe stand-in: the toolchain it names
           # is never selected on a riscv64 host. Fixed in bazel 8.2.0; the 7.x backport is open.
           mkdir -p /tmp/rules_python
-          curl -fsSLo /tmp/rules_python.tar.gz "https://github.com/bazel-contrib/rules_python/releases/download/${PROJECT_RULES_PYTHON_VERSION}/rules_python-${PROJECT_RULES_PYTHON_VERSION}.tar.gz"
+          curl -fsSLo /tmp/rules_python.tar.gz "https://github.com/bazel-contrib/rules_python/releases/download/${RULES_PYTHON_VERSION}/rules_python-${RULES_PYTHON_VERSION}.tar.gz"
           tar -xzf /tmp/rules_python.tar.gz -C /tmp/rules_python --strip-components=1
           sed -i 's|fail("No platform declared for host OS {} on arch {}".format(os_name, arch))|return "x86_64-unknown-linux-gnu"|' \
             /tmp/rules_python/python/private/toolchains_repo.bzl