feat(icons): added certificate icon (#4327)

* Added icons/certificate.svg

* Added icons/certificate.json

* Add use-cases for certificate JSON

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* Apply suggestion from @github-actions[bot]

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* Update certificate.svg

apply changes as discussed with @ericfennis

---------

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Karsa <contact@karsa.org>

icons/certificate.json

@@ -0,0 +1,44 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "rrod497"
+  ],
+  "use-cases": [
+    "Representing SSL/TLS security certificates",
+    "Representing educational or professional certifications"
+  ],
+  "tags": [
+    "award",
+    "ribbon",
+    "medal",
+    "achievement",
+    "pinned",
+    "badge",
+    "recognition",
+    "laurel",
+    "commendation",
+    "diploma",
+    "official",
+    "proof",
+    "fact",
+    "verified",
+    "license",
+    "warrant",
+    "authorization",
+    "legal",
+    "ownership",
+    "credential",
+    "ssl",
+    "tls",
+    "security",
+    "trust",
+    "cybersecurity",
+    "authority",
+    "graduation",
+    "study"
+  ],
+  "categories": [
+    "connectivity",
+    "security"
+  ]
+}

icons/certificate.svg

@@ -0,0 +1,17 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M12 10H6" />
+  <path d="m20.69 15.479 1.29 4.88a.5.5 0 01-.698.591l-1.843-.849a1 1 0 00-.879.001l-1.846.85a.5.5 0 01-.692-.593l1.29-4.88" />
+  <path d="M22 6.675V6a2 2 0 00-2-2H4a2 2 0 00-2 2v12a2 2 0 002 2h8" />
+  <path d="M6 14h4" />
+  <circle cx="19" cy="13" r="3" />
+</svg>