do not include tests or bin in git archives (#153)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Chores**
* Updated settings to exclude the /tests and /bin directories from
exported archives.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Signed-off-by: Robert Landers <landers.robert@gmail.com>

Author: withinboredom

.gitattributes

@@ -0,0 +1 @@
+/bin export-ignore

.github/workflows/build-cli.yaml

@@ -97,7 +97,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: |
-          dphp composer install --ignore-platform-reqs
+          composer install --ignore-platform-reqs
       - run: |
           echo "Running perf test"
           dphp exec tests/PerformanceTests/PerformanceClient.php