fix: move 'yum install' outside the 'cat' for influxdb3 installs (#6666)

Author: jdstrand

content/shared/influxdb3/install.md

@@ -177,8 +177,8 @@ baseurl = https://repos.influxdata.com/stable/\$basearch/main
 enabled = 1
 gpgcheck = 1
 gpgkey = file:///usr/share/influxdata-archive-keyring/keyrings/influxdata-archive.asc
-yum install influxdb3-{{< product-key >}}
 EOF
+yum install influxdb3-{{< product-key >}}
 ```
 
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