chore: ignore root-level go build artifacts

go build without -o drops binaries in the working directory; the Makefile
targets use -o bin/... (already ignored) but a direct go build shortcut
would leave stray files. Add aws-lambda-rie and ls-api to .gitignore.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: joe4dev

.gitignore

@@ -1,6 +1,8 @@
 /pkg
 /build
 /bin
+aws-lambda-rie
+ls-api
 *.swp
 *.iml
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