Update tsconfig.json touse ES2021 (#337)

Half-Shot · web-flow · commit 4aad5c455dde · 2022-07-26T15:33:43.000+01:00
Node16+ allows usage of ES2021 features, and frankly ES2015 is very old now.
diff --git a/tsconfig.json b/tsconfig.json
@@ -8,7 +8,7 @@
         "newLine": "LF",
         "noImplicitReturns": true,
         "noUnusedLocals": true,
-        "target": "es2015",
+        "target": "es2021",
         "noImplicitAny": true,
         "sourceMap": true,
         "strictNullChecks": true,
