Bump dotenv-rails from 3.1.7 to 3.1.8

Bumps [dotenv-rails](https://github.com/bkeepers/dotenv) from 3.1.7 to 3.1.8.
- [Release notes](https://github.com/bkeepers/dotenv/releases)
- [Changelog](https://github.com/bkeepers/dotenv/blob/main/Changelog.md)
- [Commits](https://github.com/bkeepers/dotenv/compare/v3.1.7...v3.1.8)

---
updated-dependencies:
- dependency-name: dotenv-rails
  dependency-version: 3.1.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -95,10 +95,10 @@ GEM
       aws-sigv4 (~> 1.5)
     aws-sigv4 (1.11.0)
       aws-eventstream (~> 1, >= 1.0.2)
-    base64 (0.2.0)
+    base64 (0.3.0)
     bcrypt (3.1.20)
-    benchmark (0.4.0)
-    bigdecimal (3.1.9)
+    benchmark (0.4.1)
+    bigdecimal (3.2.1)
     bootsnap (1.18.6)
       msgpack (~> 1.2)
     brakeman (7.0.2)
@@ -146,9 +146,9 @@ GEM
       warden (~> 1.2.3)
     diff-lcs (1.6.2)
     docile (1.4.1)
-    dotenv (3.1.7)
-    dotenv-rails (3.1.7)
-      dotenv (= 3.1.7)
+    dotenv (3.1.8)
+    dotenv-rails (3.1.8)
+      dotenv (= 3.1.8)
       railties (>= 6.1)
     drb (2.2.3)
     erb (5.0.1)
@@ -344,7 +344,7 @@ GEM
       thor (~> 1.0, >= 1.2.2)
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
-    rake (13.2.1)
+    rake (13.3.0)
     rdoc (6.14.0)
       erb
       psych (>= 4.0.0)