fix: stop importing sRGBEncoding constant (#1037)

* fix: stop importing sRGBEncoding constant

Since r162, three.js no longer exports the formerly deprecated sRGBEncoding constant. This replaces the import with the literal value to keep compatibility with older three.js versions until we release a new major version.

fixes #1036

* fix: typescript fixes for compat-code

src/three.ts

@@ -29,7 +29,6 @@ import {
   RaycasterParameters,
   REVISION,
   Scene,
-  sRGBEncoding,
   Vector2,
   Vector3,
   WebGLRenderer,
@@ -38,6 +37,11 @@ import { latLngToVector3Relative, toLatLngAltitudeLiteral } from "./util";
 
 import type { LatLngTypes } from "./util";
 
+// Since r162, the sRGBEncoding constant is no longer exported from three.
+// The value is kept here to keep compatibility with older three.js versions.
+// This will be removed with the next major release.
+const sRGBEncoding = 3001;
+
 const DEFAULT_UP = new Vector3(0, 0, 1);
 
 export interface RaycastOptions {
@@ -394,7 +398,10 @@ export class ThreeJSOverlayView implements google.maps.WebGLOverlayView {
 
     // Since r152, default outputColorSpace is SRGB
     // Deprecated outputEncoding kept for backwards compatibility
-    if (Number(REVISION) < 152) this.renderer.outputEncoding = sRGBEncoding;
+    if (Number(REVISION) < 152) {
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      (this.renderer as any).outputEncoding = sRGBEncoding;
+    }
 
     const { width, height } = gl.canvas;
     this.renderer.setViewport(0, 0, width, height);