fix: upgrade dompurify from 2.5.0 to 2.5.6

Snyk has created this PR to upgrade dompurify from 2.5.0 to 2.5.6.

See this package in yarn:
dompurify

See this project in Snyk:
https://app.snyk.io/org/jumpinjackie/project/237aa0ce-9fa8-40ed-aa0f-0fdb7e4e2a3f?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -56,7 +56,7 @@
   "dependencies": {
     "@blueprintjs/core": "^3.53.0",
     "colorbrewer": "^1.5.6",
-    "dompurify": "^2.5.0",
+    "dompurify": "^2.5.6",
     "expr-eval": "2.0.2",
     "geojson-vt": "^3.2.1",
     "immutability-helper": "^3.1.1",

yarn.lock

@@ -6134,10 +6134,10 @@ dompurify@^2.3.1, dompurify@^2.3.2:
   resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-2.3.5.tgz#c83ed5a3ae5ce23e52efe654ea052ffb358dd7e3"
   integrity sha512-kD+f8qEaa42+mjdOpKeztu9Mfx5bv9gVLO6K9jRx4uGvh6Wv06Srn4jr1wPNY2OOUGGSKHNFN+A8MA3v0E0QAQ==
 
-dompurify@^2.5.0:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-2.5.0.tgz#13b1115d79b9340e6db80b4624653f665885b15f"
-  integrity sha512-5RXhAXSCrKTqt9pSbobT9PVRX+oPpENplTZqCiK1l0ya+ZOzwo9kqsGLbYRsAhzIiLCwKEy99XKSSrqnRTLVcw==
+dompurify@^2.5.6:
+  version "2.5.6"
+  resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-2.5.6.tgz#8402b501611eaa7fb3786072297fcbe2787f8592"
+  integrity sha512-zUTaUBO8pY4+iJMPE1B9XlO2tXVYIcEA4SNGtvDELzTSCQO7RzH+j7S180BmhmJId78lqGU2z19vgVx2Sxs/PQ==
 
 domutils@^2.5.2, domutils@^2.8.0:
   version "2.8.0"