Synchronize shared configuration

.github/ISSUE_TEMPLATE/bug.yml

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+name: New issue for Reproducible Bug
+description: "If you're sure it's reproducible and not just your machine: submit an issue so we can investigate."
+type: "Bug"
+body:
+  - type: checkboxes
+    attributes:
+      label: Verification
+      description: Verify you've followed these steps. If you can't truthfully check these boxes, open a discussion at https://github.com/orgs/Homebrew/discussions instead.
+      options:
+        - label: I searched for similar issues at https://github.com/Homebrew/ruby-macho/issues and found no duplicates.
+          required: true
+        - label: I did not use AI/LLM to create this issue, or I disclosed the tool and model used; I will answer maintainer questions myself without AI/LLM.
+          required: true
+  - type: textarea
+    attributes:
+      label: What were you trying to do (and why)?
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What happened?
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What did you expect to happen?
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Step-by-step reproduction instructions
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+
+contact_links:
+  - name: Get help in GitHub Discussions
+    url: https://github.com/orgs/Homebrew/discussions
+    about: Have a question? Not sure if your issue affects everyone reproducibly? The quickest way to get help is on Homebrew's GitHub Discussions!

.github/PULL_REQUEST_TEMPLATE.md

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+-----
+
+<!-- Only tick a checkbox once you've done it; honesty keeps reviews smooth. -->
+<!-- Tick with [x] before creating, or click the boxes afterwards. -->
+
+- [ ] Have you checked for other open [Pull Requests](https://github.com/Homebrew/ruby-macho/pulls) for the same change?
+- [ ] Have you explained what your changes do and why you'd like them included?
+- [ ] Have you written new tests where it makes sense?
+- [ ] Have you successfully run this repository's tests and checks locally?
+
+-----
+
+- [ ] I did not use AI/LLM to create this PR, or I disclosed the tool/model below and reviewed its output; I did not attribute commits to AI and will answer maintainer questions and review comments myself without AI/LLM.
+
+<!-- If AI was used, explain below how it was used and how you verified the changes. Non-maintainers may only have one AI-assisted PR open at a time. See https://docs.brew.sh/Responsible-AI-Usage for guidance. -->
+
+-----