chore: github: update issue template to remove GPG public key mention

Signed-off-by: Romain Beuque <[email protected]>

Author: rbeuque74

.github/ISSUE_TEMPLATE.md

@@ -15,8 +15,7 @@ If this issue appears to affect multiple resources, it may be an issue with Terr
 ### Terraform Configuration Files
 ```hcl
 # Copy-paste your Terraform configurations here - for large Terraform configs,
-# please use a service like Dropbox and share a link to the ZIP file. For
-# security, you can also encrypt the files using our GPG public key.
+# please use a service like Dropbox and share a link to the ZIP file.
 ```
 
 ### Debug Output

.github/ISSUE_TEMPLATE/report-a-bug.md

@@ -30,8 +30,7 @@ If this issue appears to affect multiple resources, it may be an issue with [Ter
 
 ```hcl
 # Copy-paste your Terraform configurations here - for large Terraform configs,
-# please use a service like Dropbox and share a link to the ZIP file. For
-# security, you can also encrypt the files using our GPG public key.
+# please use a service like Dropbox and share a link to the ZIP file.
 ```
 
 ### Debug Output