Fix linting and tests (#813)

## Changes
<!-- Summary of your changes that are easy to understand -->

## Tests
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packages/databricks-vscode/src/utils/envVarGenerators.ts

@@ -114,7 +114,7 @@ export function getProxyEnvVars() {
 }
 
 export function removeUndefinedKeys<
-    T extends Record<string, string | undefined>
+    T extends Record<string, string | undefined>,
 >(envVarMap?: T): T | undefined {
     if (envVarMap === undefined) {
         return;