Use more descriptive names for GitHub Checks

The existing checks didn't read well in the `gh` cli:

    ❯ gh pr checks
    All checks were successful
    0 failing, 7 successful, 0 skipped, and 0 pending checks

    ✓  DCO                                 https://probot.github.io/apps/dco/
    ✓  Docs                         6m37s  https://github.com/dagger/dagger/runs/5136044870?check_suite_focus=true
    ✓  Everything                   1m43s  https://github.com/dagger/dagger/runs/5136044863?check_suite_focus=true
    ✓  Integration                  4m10s  https://github.com/dagger/dagger/runs/5136044871?check_suite_focus=true
    ✓  Universe                     11m6s  https://github.com/dagger/dagger/runs/5136044860?check_suite_focus=true
    ✓  Universe - Europa            3m18s  https://github.com/dagger/dagger/runs/5136044932?check_suite_focus=true
    ✓  netlify/devel-docs-dagge...         https://app.netlify.com/sites/devel-docs-dagger-io/deploys/620499ee88ee240008b6cabf

This change gives them more descriptive names:

    ❯ gh pr checks
    All checks were successful
    0 failing, 8 successful, 0 skipped, and 0 pending checks

    ✓  DCO                                             https://probot.github.io/apps/dco/
    ✓  Integration Tests                       4m22s   https://github.com/dagger/dagger/runs/5139842686?check_suite_focus=true
    ✓  Lint                                    1m29s   https://github.com/dagger/dagger/runs/5139842774?check_suite_focus=true
    ✓  Test Docs                               7m44s   https://github.com/dagger/dagger/runs/5139842682?check_suite_focus=true
    ✓  Unit Tests                              2m11s   https://github.com/dagger/dagger/runs/5139842684?check_suite_focus=true
    ✓  Universe Tests                          13m14s  https://github.com/dagger/dagger/runs/5139842932?check_suite_focus=true
    ✓  Universe Tests - Europa                 2m36s   https://github.com/dagger/dagger/runs/5139842678?check_suite_focus=true
    ✓  netlify/devel-docs-dagger-io/deploy...          https://deploy-preview-1593--devel-docs-dagger-io.netlify.app

Signed-off-by: Gerhard Lazu <gerhard@lazu.co.uk>

.github/workflows/lint.yml

@@ -27,8 +27,8 @@ on:
       - '.github/workflows/lint.yml'
 
 jobs:
-  everything:
-    name: Everything
+  lint:
+    name: Lint
     runs-on: ubuntu-latest
     steps:
       - name: "Check out"

.github/workflows/release.yml

@@ -9,7 +9,8 @@ on:
     - v*
 
 jobs:
-  goreleaser:
+  release:
+    name: "Release"
     runs-on: ubuntu-latest
     defaults:
       run:

.github/workflows/test-docs.yml

@@ -19,8 +19,8 @@ on:
       - '.github/workflows/test-docs.yml'
 
 jobs:
-  docs:
-    name: Docs
+  test-docs:
+    name: "Test Docs"
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:

.github/workflows/test-integration.yml

@@ -25,8 +25,8 @@ on:
       - '.github/workflows/test-integration.yml'
 
 jobs:
-  integration:
-    name: Integration
+  test-integration:
+    name: "Integration Tests"
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:

.github/workflows/test-unit.yml

@@ -19,8 +19,8 @@ on:
       - '.github/workflows/test-unit.yml'
 
 jobs:
-  unit:
-    name: Unit
+  unit-tests:
+    name: "Unit Tests"
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:

.github/workflows/test-universe.yml

@@ -25,8 +25,8 @@ on:
       - '.github/workflows/test-universe.yml'
 
 jobs:
-  universe:
-    name: Universe
+  universe-tests:
+    name: "Universe Tests"
     runs-on: ubuntu-latest
     timeout-minutes: 30
     services:
@@ -85,8 +85,8 @@ jobs:
         run: |
           make universe-test
 
-  universe-europa:
-    name: "Universe - Europa"
+  universe-europa-tests:
+    name: "Universe Tests - Europa"
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:

.github/workflows/test-website.yml

@@ -1,21 +1,18 @@
-name: Website
+# TODO: https://github.com/dagger/dagger.io/issues/45
+name: "Test Website"
 
 on:
   push:
     branches: [main]
     paths:
       - "website/**"
-  pull_request:
-    branches: [main]
-    paths:
-      - "website/**"
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
 jobs:
-  website:
-    name: Website
+  test-website:
+    name: "Test Website"
     runs-on: ubuntu-latest
     steps:
       - name: Checkout