update message to be more general

This considers self-hosted runners

dist/index.js

@@ -4710,7 +4710,7 @@ function run() {
             // if architecture supplied but node-version is not
             // if we don't throw a warning, the already installed x64 node will be used which is not probably what user meant.
             if (arch && !version) {
-                core.warning('`architecture` is provided but `node-version` is missing. This results in using an already installed x64 node which is not probably what you meant. To fix this, provide `architecture` in combination with `node-version`');
+                core.warning('`architecture` is provided but `node-version` is missing. In this configuration, the version/architecture of Node will not be changed. To fix this, provide `architecture` in combination with `node-version`');
             }
             if (!arch) {
                 arch = os.arch();

src/main.ts

@@ -22,7 +22,7 @@ export async function run() {
     // if we don't throw a warning, the already installed x64 node will be used which is not probably what user meant.
     if (arch && !version) {
       core.warning(
-        '`architecture` is provided but `node-version` is missing. This results in using an already installed x64 node which is not probably what you meant. To fix this, provide `architecture` in combination with `node-version`'
+        '`architecture` is provided but `node-version` is missing. In this configuration, the version/architecture of Node will not be changed. To fix this, provide `architecture` in combination with `node-version`'
       );
     }