Always add bin path to $PATH on macos builders (#19466)

* Always add bin path to $PATH on macos builders

* Add a dummy change to test that a macos build with a cache hit works

* Revert "Add a dummy change to test that a macos build with a cache hit works"

This reverts commit 4df3963.

Author: alopezz

.builders/build.py

@@ -118,6 +118,7 @@ def build_macos():
             'DD_PY2_BUILDENV_PATH': builder_root / 'py2' / 'bin' / 'python',
             # Path where we'll install libraries that we build
             'DD_PREFIX_PATH': prefix_path,
+            'PATH': f'{prefix_path}/bin:{os.environ["PATH"]}',
             # Common compilation flags
             'LDFLAGS': f'-L{prefix_path}/lib',
             'CFLAGS': f'-I{prefix_path}/include -O2',

.builders/images/macos-x86_64/builder_setup.sh

@@ -100,8 +100,6 @@ VERSION="16.0" \
 SHA256="df9e823eb22330444e1d48e52cc65135a652a6fdb3ce325e3f08549339f51b99" \
 RELATIVE_PATH="postgresql-{{version}}" \
   install-from-source --without-readline --with-openssl --without-icu
-# Add paths to pg_config and to the library
-echo PATH="${DD_PREFIX_PATH}/bin:${PATH:-}" >> $DD_ENV_FILE
 
 # Dependencies needed to build librdkafka (and thus, confluent-kafka) with kerberos support
 DOWNLOAD_URL="https://github.com/LMDB/lmdb/archive/LMDB_{{version}}.tar.gz" \