Fix usage of singular driver/ directory

Follows up [1] which renamed `drivers/` to `driver/` to also fix all the
uses of the plural `drivers/` in scripts and documentation. I
accidentally forgot to push this in a branch and broke `master`.

[1] 8fb0563

Author: brandur

Makefile

@@ -15,14 +15,14 @@ rspec: spec
 .PHONY: spec
 spec:
 	bundle exec rspec
-	cd drivers/riverqueue-activerecord && bundle exec rspec
-	cd drivers/riverqueue-sequel && bundle exec rspec
+	cd driver/riverqueue-activerecord && bundle exec rspec
+	cd driver/riverqueue-sequel && bundle exec rspec
 
 .PHONY: standardrb
 standardrb:
 	bundle exec standardrb --fix
-	cd drivers/riverqueue-activerecord && bundle exec standardrb --fix
-	cd drivers/riverqueue-sequel && bundle exec standardrb --fix
+	cd driver/riverqueue-activerecord && bundle exec standardrb --fix
+	cd driver/riverqueue-sequel && bundle exec standardrb --fix
 
 .PHONY: steep
 steep:

docs/README.md

@@ -4,7 +4,7 @@ An insert-only Ruby client for [River](https://github.com/riverqueue/river) pack
 
 ## Basic usage
 
-Your project's `Gemfile` should contain the `riverqueue` gem and a driver like [`riverqueue-sequel`](https://github.com/riverqueue/riverqueue-ruby/drivers/riverqueue-sequel) (see [drivers](#drivers)):
+Your project's `Gemfile` should contain the `riverqueue` gem and a driver like [`riverqueue-sequel`](https://github.com/riverqueue/riverqueue-ruby/driver/riverqueue-sequel) (see [drivers](#drivers)):
 
 ```ruby
 gem "riverqueue"

docs/development.md

@@ -4,8 +4,8 @@
 
 ```shell
 $ bundle install
-$ pushd drivers/riverqueue-activerecord && bundle install && popd
-$ pushd drivers/riverqueue-sequel && bundle install && popd
+$ pushd driver/riverqueue-activerecord && bundle install && popd
+$ pushd driver/riverqueue-sequel && bundle install && popd
 ```
 ## Run tests
 
@@ -53,16 +53,16 @@ $ open coverage/index.html
     export VERSION=v0.0.x
 
     ruby scripts/update_gemspec_version.rb riverqueue.gemspec
-    ruby scripts/update_gemspec_version.rb drivers/riverqueue-activerecord/riverqueue-activerecord.gemspec
-    ruby scripts/update_gemspec_version.rb drivers/riverqueue-sequel/riverqueue-sequel.gemspec
+    ruby scripts/update_gemspec_version.rb driver/riverqueue-activerecord/riverqueue-activerecord.gemspec
+    ruby scripts/update_gemspec_version.rb driver/riverqueue-sequel/riverqueue-sequel.gemspec
 
     gem build riverqueue.gemspec
-    pushd drivers/riverqueue-activerecord && gem build riverqueue-activerecord.gemspec && popd
-    pushd drivers/riverqueue-sequel && gem build riverqueue-sequel.gemspec && popd
+    pushd driver/riverqueue-activerecord && gem build riverqueue-activerecord.gemspec && popd
+    pushd driver/riverqueue-sequel && gem build riverqueue-sequel.gemspec && popd
 
     bundle install
-    pushd drivers/riverqueue-activerecord && bundle install && popd
-    pushd drivers/riverqueue-sequel && bundle install && popd
+    pushd driver/riverqueue-activerecord && bundle install && popd
+    pushd driver/riverqueue-sequel && bundle install && popd
 
     gco -b $USER-$VERSION
     ```
@@ -75,8 +75,8 @@ $ open coverage/index.html
     git pull origin master
 
     gem push riverqueue-${"${VERSION}"/v/}.gem
-    pushd drivers/riverqueue-activerecord && gem push riverqueue-activerecord-${"${VERSION}"/v/}.gem && popd
-    pushd drivers/riverqueue-sequel && gem push riverqueue-sequel-${"${VERSION}"/v/}.gem && popd
+    pushd driver/riverqueue-activerecord && gem push riverqueue-activerecord-${"${VERSION}"/v/}.gem && popd
+    pushd driver/riverqueue-sequel && gem push riverqueue-sequel-${"${VERSION}"/v/}.gem && popd
 
     git tag $VERSION
     git push --tags