Update JCA provider links to version 2.8.1 in documentation files.

Author: backwind1233

AzureJavaSDK/JCA/integrate_keyvault_JCA_provider_with_jarsigner.md

@@ -25,7 +25,7 @@ Before beginning, ensure you have the following:
 
 ### Step 1: Download and Configure JCA Provider Jar
 
-1. Download the [JCA](https://repo1.maven.org/maven2/com/azure/azure-security-keyvault-jca/2.9.0/azure-security-keyvault-jca-2.9.0.jar) Provider Jar.
+1. Download the [JCA](https://repo1.maven.org/maven2/com/azure/azure-security-keyvault-jca/2.8.1/azure-security-keyvault-jca-2.8.1.jar) Provider Jar.
 2. If you are using Java8, you need to add the JCA provider jar to the class path.
     1. Place the jar under the folder `${JAVA_HOME}/jre/lib/ext`
         - ![img.jpg](../Ressources/JCA/place_jar.jpg)
@@ -134,7 +134,7 @@ az role assignment create \
     | Parameter | Description |Example|
     |---|---|---|
     | **PARAM_YOUR_JAR_FILE_PATH** | The path to your jar file you wish to sign. | /path/to/your/jarfile.jar |
-    | **PARAM_JCA_PROVIDER_JAR_PATH** | The path to the jca provider jar file. | /path/to/your/azure-security-keyvault-jca-2.9.0.jar |
+    | **PARAM_JCA_PROVIDER_JAR_PATH** | The path to the jca provider jar file. | /path/to/your/azure-security-keyvault-jca-2.8.1.jar |
 
     1. If you are using Java8, try to sign the jar using below command
          ```bash

AzureJavaSDK/JCA/integrate_keyvault_JCA_provider_with_jarsigner_powershell.md

@@ -25,7 +25,7 @@ Before beginning, ensure you have the following:
 
 ### Step 1: Download and Configure JCA Provider Jar
 
-1. Download the [JCA](https://repo1.maven.org/maven2/com/azure/azure-security-keyvault-jca/2.9.0/azure-security-keyvault-jca-2.9.0.jar) Provider Jar.
+1. Download the [JCA](https://repo1.maven.org/maven2/com/azure/azure-security-keyvault-jca/2.8.1/azure-security-keyvault-jca-2.8.1.jar) Provider Jar.
 2. If you are using Java8, you need to add the JCA provider jar to the class path.
     1. Place the jar under the folder `${JAVA_HOME}/jre/lib/ext`
         - ![img.jpg](../Ressources/JCA/place_jar.jpg)
@@ -131,7 +131,7 @@ az role assignment create `
     | Parameter | Description |Example|
     |---|---|---|
     | **PARAM_YOUR_JAR_FILE_PATH** | The path to your jar file you wish to sign. | C:\path\to\your\jarfile.jar |
-    | **PARAM_JCA_PROVIDER_JAR_PATH** | The path to the jca provider jar file. | C:\path\to\your\azure-security-keyvault-jca-2.9.0.jar |
+    | **PARAM_JCA_PROVIDER_JAR_PATH** | The path to the jca provider jar file. | C:\path\to\your\azure-security-keyvault-jca-2.8.1.jar |
 
     1. If you are using Java8, try to sign the jar using below command
          ```powershell