deps: Update file_picker to 10.2.0, from 10.1.9

Changelog:
  https://pub.dev/packages/file_picker/changelog#1020

One bug fix on Android, for `saveFile`, which we don't use.

Also, update lint-baseline.xml using `gradlew updateLintBaseline`.

Author: rajveermalviya

android/app/lint-baseline.xml

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<issues format="6" by="lint 8.5.2" type="baseline" client="gradle" dependencies="false" name="AGP (8.5.2)" variant="all" version="8.5.2">
+<issues format="6" by="lint 8.10.0" type="baseline" client="gradle" dependencies="false" name="AGP (8.10.0)" variant="all" version="8.10.0">
 
     <!--TODO(#855) see if this is no longer needed-->
     <issue
         id="InvalidPackage"
         message="Invalid package reference in library; not included in Android: `javax.xml.stream`. Referenced from `org.apache.tika.utils.XMLReaderUtils`.">
         <location
-            file="$GRADLE_USER_HOME/caches/modules-2/files-2.1/org.apache.tika/tika-core/3.1.0/6ba44a9ddf8f6f2b4bc88e8bc64269aea0424607/tika-core-3.1.0.jar"/>
+            file="$GRADLE_USER_HOME/caches/modules-2/files-2.1/org.apache.tika/tika-core/3.2.0/9232bb3c71f231e8228f570071c0e1ea29d40115/tika-core-3.2.0.jar"/>
     </issue>
 
 </issues>

pubspec.lock

@@ -318,10 +318,10 @@ packages:
     dependency: "direct main"
     description:
       name: file_picker
-      sha256: "77f8e81d22d2a07d0dee2c62e1dda71dc1da73bf43bb2d45af09727406167964"
+      sha256: ef9908739bdd9c476353d6adff72e88fd00c625f5b959ae23f7567bd5137db0a
       url: "https://pub.dev"
     source: hosted
-    version: "10.1.9"
+    version: "10.2.0"
   file_selector_linux:
     dependency: transitive
     description: