feat: upgrade APISIX to 2.12.1 (#234)

diff --git a/charts/apisix/Chart.yaml b/charts/apisix/Chart.yaml
index 0c07acf..3ffefa6 100644
--- a/charts/apisix/Chart.yaml
+++ b/charts/apisix/Chart.yaml
@@ -31,12 +31,12 @@
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.8.2
+version: 0.8.3
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
-appVersion: 2.12.0
+appVersion: 2.12.1
 
 dependencies:
   - name: etcd
diff --git a/charts/apisix/values.yaml b/charts/apisix/values.yaml
index 4232739..433b1a4 100644
--- a/charts/apisix/values.yaml
+++ b/charts/apisix/values.yaml
@@ -56,7 +56,7 @@
     repository: apache/apisix
     pullPolicy: IfNotPresent
     # Overrides the image tag whose default is the chart appVersion.
-    tag: 2.12.0-alpine
+    tag: 2.12.1-alpine
 
   replicaCount: 1