Update recipes.bzl with 8.6.0

Also update version_mappings.txt with the expected versions for AGP 8.8
to unblock incrementing the AGP version number.

Bug: 324919230
Test: existing
Change-Id: I6b161281a14acc5e84609dc48bee4b20ea00ace1

recipes.bzl

@@ -92,6 +92,22 @@ def recipe_test(
             ],
             "jdk_version": 17,
         },
+        "8.6.0": {
+            "name": name + "_8_6_0",
+            "gradle_path": "$(location //tools/base/build-system:gradle-distrib-8.9)",
+            "manifest_repos": [
+                "//tools/base/build-system/previous-versions:8.6.0",
+                "//tools/base/build-system/integration-test:kotlin_gradle_plugin_prebuilts",
+                ":kotlin_1_9_22",
+                "//tools/base/build-system:gradle-8.9-runtime-maven",
+            ],
+            "zip_repos": [],
+            "data": [
+                "//prebuilts/studio/sdk:build-tools/34.0.0",
+                "//tools/base/build-system:gradle-distrib-8.9",
+            ],
+            "jdk_version": 17,
+        },
         "ToT": {
             "name": name,
             "gradle_path": "$(location //tools/base/build-system:gradle-distrib)",

version_mappings.txt

@@ -6,3 +6,4 @@
 8.5;8.7;1.9.22
 8.6;8.9;1.9.22
 8.7;8.9;1.9.22
+8.8;8.9;1.9.22