chore: resolve a circular dependency, update other dependencies, etc. (…

…#448)

* chore: resolve a circular dependency, update other dependencies, split some stuff up

* chore: add playground lockfile, deprecated function fixed

* chore: satisfy clippy complaints

* chore(core): more clippy complaints

* chore: pls clippy

* chore: clippy is satisfied!

* chore: removed unused code

* chore: clippy pls

* fix: increased retries, so mariadb won't fail

* fix(workflows): mariadb environment variables changed

* fix(workflows): mariadb deprecated some mysql stuff

* fix(tests): mariadb deprecated mysql stuff, so stuff needs to be done

* chore: remove some redundant imports

* chore: remove redundant imports

* chore: cargo fmt

* chore: removed the redundant deps I didn't notice

* chore: gah, forgot to fmt

.github/workflows/synth-mysql.yml

@@ -33,16 +33,16 @@ jobs:
       mariadb:
         image: mariadb
         env:
-          MYSQL_ROOT_PASSWORD: mysecretpassword
-          MYSQL_DATABASE: test_db
+          MARIADB_ROOT_PASSWORD: mysecretpassword
+          MARIADB_DATABASE: test_db
         ports:
           - 3307:3306
         options: >-
           --name mariadb-synth-harness
-          --health-cmd="mysqladmin ping"
+          --health-cmd="mariadb-admin ping"
           --health-interval=10s
           --health-timeout=5s
-          --health-retries=3
+          --health-retries=5
     strategy:
       matrix:
         include: