Add a lint baseline for Launcher3

The lint version in tm-qpr-dev incorrectly flags BaseActivity.java.
Add an entry to lint-baseline.xml file to silence the incorrect
error.  The newer version of lint in master doesn't have the false
positive.

Bug: 258754271
Bug: 256019562
Test: m RUN_ERROR_PRONE=true javac-check lint-check
Change-Id: I2fd22e96c8e89b7dc25132089e36d599e012e747
Merged-In: If02f87ef74c73321afa3427d845ad80539292b30

lint-baseline-launcher3.xml

@@ -606,4 +606,20 @@
             column="61"/>
     </issue>
 
+    <issue
+        id="NewApi"
+        message="Call requires API level 33 (current min is 26): `android.app.Activity#getOnBackInvokedDispatcher`">
+        <location
+            file="packages/apps/Launcher3/src/com/android/launcher3/BaseActivity.java"
+            line="182"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 33 (current min is 26): `android.window.OnBackInvokedDispatcher#registerOnBackInvokedCallback`">
+        <location
+            file="packages/apps/Launcher3/src/com/android/launcher3/BaseActivity.java"
+            line="182"/>
+    </issue>
+
 </issues>