chore: extra guards process.env (#5281)

evidently some places have `process` but not `process.env`

Author: wjhsf

packages/@lwc/engine-core/src/framework/check-version-mismatch.ts

@@ -38,7 +38,12 @@ export function checkVersionMismatch(
 ) {
     const versionMatcher = func.toString().match(LWC_VERSION_COMMENT_REGEX);
     if (!isNull(versionMatcher) && !warned) {
-        if (typeof process === 'object' && process.env.SKIP_LWC_VERSION_MISMATCH_CHECK === 'true') {
+        if (
+            typeof process === 'object' &&
+            typeof process?.env === 'object' &&
+            process.env &&
+            process.env.SKIP_LWC_VERSION_MISMATCH_CHECK === 'true'
+        ) {
             warned = true; // skip printing out version mismatch errors when env var is set
             return;
         }