chore: PR template

Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com>

Author: jkowalleck

.github/PULL_REQUEST_TEMPLATE.md

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+
+You can expedite processing of your PR by using this template to provide context
+and additional information. Before actually opening a PR please make sure that it
+does NOT fall into any of the following categories
+
+🚫 Spam PRs (accidental or intentional) - these will result in a 30-days or even
+∞ ban from interacting with the project depending on reoccurrence and severity.
+
+🚫 Lazy typo fixing PRs - if you fix a typo in a file, your PR will only be merged
+if all other typos in the same file are also fixed with the same PR
+
+🚫 If you fail to provide any _Description_ below, your PR will be considered spam.
+If you do not check the _Affirmation_ box below, your PR will not be merged.
+
+🚫 If you do not check one of the _AI Tool Disclosure_ boxes below, your PR will
+not be merged. If you used AI tools to assist you in writing code, but fail to
+provide the required disclosure, your PR will not be merged.
+
+🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅🔅-->
+
+### Description
+
+<!-- ✍️-->
+A clear and concise summary of the change and which issue (if any) it fixes. Should also include relevant motivation and context.
+
+Resolves or fixes issue: <!-- ✍️ Add GitHub issue number in format `#0000` or `none` -->
+
+### AI Tool Disclosure
+
+- [ ] My contribution does not include any AI-generated content
+- [ ] My contribution includes AI-generated content, as disclosed below:
+  - AI Tools: `[e.g. GitHub CoPilot, ChatGPT, JetBrains Junie etc.]`
+  - LLMs and versions: `[e.g. GPT-4.1, Claude Haiku 4.5, Gemini 2.5 Pro etc.]`
+  - Prompts: `[Summarize the key prompts or instructions given to the AI tools]`
+
+### Affirmation
+
+- [ ] My code follows the [CONTRIBUTING.md](https://github.com/CycloneDX/cyclonedx-python/blob/main/CONTRIBUTING.md) guidelines