Bump bootstrap from 4.1.1 to 4.3.1

Bumps [bootstrap](https://github.com/twbs/bootstrap-rubygem) from 4.1.1 to 4.3.1.
- [Release notes](https://github.com/twbs/bootstrap-rubygem/releases)
- [Changelog](https://github.com/twbs/bootstrap-rubygem/blob/master/CHANGELOG.md)
- [Commits](twbs/bootstrap-rubygem@v4.1.1...v4.3.1)

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

Author: dependabot[bot]

Gemfile

@@ -53,7 +53,7 @@ end
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 
-gem 'bootstrap', '~> 4.1.0'
+gem 'bootstrap', '~> 4.3.1'
 
 gem 'harker_view_tool', git: 'https://github.com/htharker42/harker_view_tool'
 

Gemfile.lock

@@ -47,7 +47,7 @@ GEM
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
     arel (8.0.0)
-    autoprefixer-rails (8.6.5)
+    autoprefixer-rails (9.7.4)
       execjs
     aws-eventstream (1.0.1)
     aws-partitions (1.93.0)
@@ -66,10 +66,10 @@ GEM
     aws-sigv4 (1.0.2)
     bcrypt (3.1.13)
     bindex (0.5.0)
-    bootstrap (4.1.1)
-      autoprefixer-rails (>= 6.0.3)
-      popper_js (>= 1.12.9, < 2)
-      sass (>= 3.5.2)
+    bootstrap (4.3.1)
+      autoprefixer-rails (>= 9.1.0)
+      popper_js (>= 1.14.3, < 2)
+      sassc-rails (>= 2.0.0)
     buftok (0.2.0)
     builder (3.2.4)
     byebug (10.0.2)
@@ -105,7 +105,7 @@ GEM
     equalizer (0.0.11)
     erubi (1.9.0)
     execjs (2.7.0)
-    ffi (1.9.25)
+    ffi (1.12.2)
     font-awesome-rails (4.7.0.4)
       railties (>= 3.2, < 6.0)
     globalid (0.4.1)
@@ -161,7 +161,7 @@ GEM
     petergate (1.8.1)
       activerecord (> 4.0.0)
     pg (1.0.0)
-    popper_js (1.12.9)
+    popper_js (1.16.0)
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
@@ -198,14 +198,14 @@ GEM
       thor (>= 0.18.1, < 2.0)
     rake (13.0.1)
     rb-fsevent (0.10.3)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
     redcarpet (3.4.0)
     responders (3.0.0)
       actionpack (>= 5.0)
       railties (>= 5.0)
     ruby_dep (1.5.0)
-    sass (3.5.6)
+    sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -216,6 +216,14 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
+    sassc (2.2.1)
+      ffi (~> 1.9)
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
     simple_oauth (0.3.1)
     spring (2.0.2)
       activesupport (>= 4.2)
@@ -268,7 +276,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  bootstrap (~> 4.1.0)
+  bootstrap (~> 4.3.1)
   byebug
   carrierwave (~> 1.2, >= 1.2.2)
   carrierwave-aws (~> 1.3)