chore: rename workflows

Author: caspervonb

.github/workflows/rust.yml renamed to .github/workflows/ci.yml

@@ -1,4 +1,4 @@
-name: testing
+name: ci
 
 on:
   push:

.github/workflows/cron-stress.yml renamed to .github/workflows/cron.yml

@@ -1,12 +1,12 @@
-name: stress
+name: cron
 
 on:
   schedule: 
     - cron: '0 13,1 * * *'
   workflow_dispatch:
 
 jobs:
-  build-lint-test-benchmark:
+  stress:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2