Merge pull request #117 from giselles-ai/security-txt

Create `security.txt` and add a GH Actions workflow to remind you of its updates

.github/workflows/create_issue_security_txt.yml

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+name: Create an issue to remind updating of security.txt
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 1 6,12 *" # Every year on 6/1 and 12/1 at 9:00am JST
+
+jobs:
+  get_date:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Get this month
+        id: get_this_month
+        run: |
+          echo "this_month=$(date +%Y/%m)" >> "$GITHUB_OUTPUT"
+    outputs:
+      this_month: ${{ steps.get_this_month.outputs.this_month }}
+  create_issue:
+    needs: get_date
+    uses: route06/actions/.github/workflows/create_gh_issue.yml@v2
+    permissions:
+      contents: read
+      issues: write
+    with:
+      title: "[Action Required] Update security.txt - ${{ needs.get_date.outputs.this_month }} Maintenance"
+      description_template_path: .github/workflows/templates/create_issue_security_txt.md

.github/workflows/templates/create_issue_security_txt.md

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+## Summary
+
+This issue reminds you to update your `security.txt` file to comply with the latest standards and maintain its relevance.
+
+🔗 [RFC 9116: A File Format to Aid in Security Vulnerability Disclosure](https://www.rfc-editor.org/rfc/rfc9116)
+
+> The "Expires" field indicates the date and time after which the data contained in the "security.txt" file is considered stale and should not be used (as per Section 5.3). (snip) It is RECOMMENDED that the value of this field be less than a year into the future to avoid staleness.
+
+## What to do
+
+Please create a pull request to address the following tasks:
+
+* Update the `Expires` field in `security.txt` to a date less than a year in the future
+* Review and update any other fields in the file to ensure they remain accurate and relevant

public/.well-known/security.txt

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+Contact: mailto:[email protected]
+Expires: 2024-12-31T23:59:59Z
+
+Preferred-Languages: en, ja
+Policy: https://github.com/giselles-ai/giselle/security/policy
+Canonical: https://studio.giselles.ai/.well-known/security.txt