chore(*): move FUNDING.yml to .github repository (#290)

This pull request removes references to funding sources and updates the
sync configuration to exclude the `FUNDING.yml` file.

Funding source removal:

*
[`.github/FUNDING.yml`](diffhunk://#diff-07985fdcade0e64d11482724879a644f07879ba61b8fb6c6119e1b1902b72ae4L1-L2):
Removed GitHub and Open Collective funding links.

Sync configuration update:

*
[`.github/sync-client.yml`](diffhunk://#diff-93bc202766315b6269beef308a6ad30ed3e86938ddbfa31b49e030f2263695f1L29-L30):
Removed the sync configuration for the `FUNDING.yml` file, ensuring it
is no longer copied to the `configs/.github` directory.

Author: lumirlumir

.github/FUNDING.yml

@@ -26,8 +26,6 @@ lumirlumir/lumirlumir-configs:
   # ./.github
   - source: ./.github/CODEOWNERS
     dest: ./configs/.github/CODEOWNERS
-  - source: ./.github/FUNDING.yml
-    dest: ./configs/.github/FUNDING.yml
   - source: ./.github/PULL_REQUEST_TEMPLATE.md
     dest: ./configs/.github/PULL_REQUEST_TEMPLATE.md
   - source: ./.github/dependabot.yml