chore(deps)!: update actions/checkout action to v6 (#45)

Co-authored-by: onion-4-dinner <15676555+onion-4-dinner@users.noreply.github.com>

.github/workflows/ci.yml

@@ -54,7 +54,7 @@ jobs:
     name: Go Checks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-go@v6
         with:
@@ -94,7 +94,7 @@ jobs:
     name: Go Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-go@v6
         with:
@@ -117,7 +117,7 @@ jobs:
     name: Code Generation Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-go@v6
         with:
@@ -151,7 +151,7 @@ jobs:
       run:
         working-directory: frontend
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: pnpm/action-setup@v4
         with:
@@ -192,7 +192,7 @@ jobs:
             build-name: yellowjacket.exe
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: recursive