Bump bleach from 3.2.1 to 3.3.0 in /examples

Bumps [bleach](https://github.com/mozilla/bleach) from 3.2.1 to 3.3.0.
- [Release notes](https://github.com/mozilla/bleach/releases)
- [Changelog](https://github.com/mozilla/bleach/blob/master/CHANGES)
- [Commits](https://github.com/mozilla/bleach/compare/v3.2.1...v3.3.0)

Signed-off-by: dependabot[bot] <support@github.com>

examples/Pipfile.lock

@@ -56,11 +56,11 @@
         },
         "bleach": {
             "hashes": [
-                "sha256:52b5919b81842b1854196eaae5ca29679a2f2e378905c346d3ca8227c2c66080",
-                "sha256:9f8ccbeb6183c6e6cddea37592dfb0167485c1e3b13b3363bc325aa8bda3adbd"
+                "sha256:6123ddc1052673e52bab52cdc955bcb57a015264a1c57d37bea2f6b817af0125",
+                "sha256:98b3170739e5e83dd9dc19633f074727ad848cbedb6026708c8ac2d3b697a433"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==3.2.1"
+            "version": "==3.3.0"
         },
         "cffi": {
             "hashes": [