chore: update @ai-sdk/google to version 2.0.20 and add corresponding patch

- Updated the @ai-sdk/google dependency to version 2.0.20 in package.json.
- Added a new patch file for the updated version to address specific changes in the library.

.yarn/patches/@ai-sdk-google-npm-2.0.20-b9102f9d54.patch

@@ -1,8 +1,8 @@
 diff --git a/dist/index.mjs b/dist/index.mjs
-index b957cb824faa79cf01ba3a504f221870bd8e306a..4d71d30f655775d61537d9d8b73f6e17d41fa67e 100644
+index 69ab1599c76801dc1167551b6fa283dded123466..f0af43bba7ad1196fe05338817e65b4ebda40955 100644
 --- a/dist/index.mjs
 +++ b/dist/index.mjs
-@@ -452,7 +452,7 @@ function convertToGoogleGenerativeAIMessages(prompt, options) {
+@@ -477,7 +477,7 @@ function convertToGoogleGenerativeAIMessages(prompt, options) {
  
  // src/get-model-path.ts
  function getModelPath(modelId) {

package.json

@@ -382,7 +382,7 @@
     "undici": "6.21.2",
     "vite": "npm:rolldown-vite@latest",
     "tesseract.js@npm:*": "patch:tesseract.js@npm%3A6.0.1#~/.yarn/patches/tesseract.js-npm-6.0.1-2562a7e46d.patch",
-    "@ai-sdk/google@npm:2.0.17": "patch:@ai-sdk/google@npm%3A2.0.17#~/.yarn/patches/@ai-sdk-google-npm-2.0.17-fd88491de4.patch"
+    "@ai-sdk/google@npm:2.0.20": "patch:@ai-sdk/google@npm%3A2.0.20#~/.yarn/patches/@ai-sdk-google-npm-2.0.20-b9102f9d54.patch"
   },
   "packageManager": "yarn@4.9.1",
   "lint-staged": {

yarn.lock

@@ -168,6 +168,18 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@ai-sdk/google@patch:@ai-sdk/google@npm%3A2.0.20#~/.yarn/patches/@ai-sdk-google-npm-2.0.20-b9102f9d54.patch":
+  version: 2.0.20
+  resolution: "@ai-sdk/google@patch:@ai-sdk/google@npm%3A2.0.20#~/.yarn/patches/@ai-sdk-google-npm-2.0.20-b9102f9d54.patch::version=2.0.20&hash=1f2ccb"
+  dependencies:
+    "@ai-sdk/provider": "npm:2.0.0"
+    "@ai-sdk/provider-utils": "npm:3.0.12"
+  peerDependencies:
+    zod: ^3.25.76 || ^4.1.8
+  checksum: 10c0/2d567361d533a4e2be83aa135cb5f01f09ea54c255d7751171855ef4244cfaeff73fe7b3c7b044b384a9c170e89d053160a26933176ad68dcaf03bd3c69c0be3
+  languageName: node
+  linkType: hard
+
 "@ai-sdk/mistral@npm:^2.0.19":
   version: 2.0.19
   resolution: "@ai-sdk/mistral@npm:2.0.19"