Bump up crt version to 0.15.22 (#3093)

Author: zoewangg

.changes/next-release/feature-AWSSDKforJavav2-00e99af.json

@@ -0,0 +1,6 @@
+{
+    "category": "AWS SDK for Java v2", 
+    "contributor": "", 
+    "type": "feature", 
+    "description": "Bump up crt version from 0.15.15 tp 0.15.22"
+}

pom.xml

@@ -114,7 +114,7 @@
         <rxjava.version>2.2.21</rxjava.version>
         <commons-codec.verion>1.10</commons-codec.verion>
         <jmh.version>1.29</jmh.version>
-        <awscrt.version>0.15.15</awscrt.version>
+        <awscrt.version>0.15.22</awscrt.version>
 
         <!--Test dependencies -->
         <junit5.version>5.8.1</junit5.version>