Scripting tweaks (#138)

- No need to build with coverage by default on linux platforms
- Will add coverage formally in CI later
- Rename rust.yml to pr.yml

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>

scripts/pre-commit

@@ -6,7 +6,7 @@ set -eo pipefail
 
 if [ -f Cargo.toml ]; then
     # Ensure that all targets can be built.
-    cargo build --all-targets
+    cargo build -r --all-targets
 
     #Ensure that code is correctly formatted.
     cargo fmt --check || (echo "Run cargo fmt to fix formatting" && exit 1)