tweak new issue template (#4002)

## What are you changing in this pull request and why?
<!---
Describe your changes and why you're making them. If linked to an open
issue or a pull request on dbt Core, then link to them here! 

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see the [Content style
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- indenting bug in YAML
- renaming file to make it show up last in UI where last = alphabetical
by filename

## Checklist
<!--
Uncomment if you're publishing docs for a prerelease version of dbt
(delete if not applicable):
- [ ] Add versioning components, as described in [Versioning
Docs](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#versioning-entire-pages)
- [ ] Add a note to the prerelease version [Migration
Guide](https://github.com/dbt-labs/docs.getdbt.com/tree/current/website/docs/guides/migration/versions)
-->
- [ ] Review the [Content style
guide](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/content-style-guide.md)
and [About
versioning](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#adding-a-new-version)
so my content adheres to these guidelines.
- [ ] Add a checklist item for anything that needs to happen before this
PR is merged, such as "needs technical review" or "change base branch."

Adding new pages (delete if not applicable):
- [ ] Add page to `website/sidebars.js`
- [ ] Provide a unique filename for the new page

Removing or renaming existing pages (delete if not applicable):
- [ ] Remove page from `website/sidebars.js`
- [ ] Add an entry `website/static/_redirects`
- [ ] [Ran link
testing](https://github.com/dbt-labs/docs.getdbt.com#running-the-cypress-tests-locally)
to update the links that point to the deleted page

.github/ISSUE_TEMPLATE/add-adapter-to-trusted-list.yml → .github/ISSUE_TEMPLATE/zzz_add-adapter-to-trusted-list.yml

@@ -41,11 +41,5 @@ body:
         - label: I am a maintainer of the adapter being submited for Trusted status
         - label: I have read both the [Trusted adapters](https://docs.getdbt.com/docs/trusted-adapters) and [Building a Trusted Adapter](https://docs.getdbt.com/guides/dbt-ecosystem/adapter-development/8-building-a-trusted-adapter) pages.
         - label: I believe that the adapter currently meets the expectations given above
-- label: I will ensure this adapter stays in compliance with the guidelines 
+        - label: I will ensure this adapter stays in compliance with the guidelines 
         - label: I understand that dbt Labs reserves the right to remove an adapter from the trusted adapter list at any time, should any of the below guidelines not be met
-    validations:
-      required: true
-
-
-
-