Bump validate_url from 1.0.13 to 1.0.15

Bumps [validate_url](https://github.com/perfectline/validates_url) from 1.0.13 to 1.0.15.
- [Release notes](https://github.com/perfectline/validates_url/releases)
- [Changelog](https://github.com/perfectline/validates_url/blob/master/CHANGELOG.md)
- [Commits](https://github.com/perfectline/validates_url/commits)

---
updated-dependencies:
- dependency-name: validate_url
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -92,7 +92,7 @@ GEM
     aws-sigv4 (1.4.0)
       aws-eventstream (~> 1, >= 1.0.2)
     builder (3.2.4)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.1.10)
     crack (0.4.5)
       rexml
     crass (1.0.6)
@@ -180,7 +180,7 @@ GEM
     parser (3.1.2.0)
       ast (~> 2.4.1)
     pg (1.3.2)
-    public_suffix (4.0.6)
+    public_suffix (4.0.7)
     racc (1.6.0)
     rack (2.2.3)
     rack-test (1.1.0)
@@ -257,7 +257,7 @@ GEM
       concurrent-ruby (~> 1.0)
     ulid (1.3.0)
     unicode-display_width (2.1.0)
-    validate_url (1.0.13)
+    validate_url (1.0.15)
       activemodel (>= 3.0.0)
       public_suffix
     vcr (6.0.0)