Upgrade the Agent

Shut down the NGINX server.
Move or rename the agent install directory, /opt/opentelemetry-webserver-sdk to create a backup.
Download the new version of the agent and extract it into /opt/opentelemetry-webserver-sdk.
Change directory to the agent install directory:
```
cd <agent_install_directory>
```
CODE
Run the installer:
```
./install.sh
```
CODE
It is not necessary to change the configuration when you use the same directory location as the old agent installation.
Restart the NGINX server.