ci: fix warnings reported by yamllint

.github/workflows/build.yml

@@ -1,3 +1,4 @@
+---
 name: Build Targets
 
 on: [push, pull_request]
@@ -34,3 +35,4 @@ jobs:
         run: |
           git status
           ls -lR .
+...

.github/workflows/lint.yml

@@ -1,3 +1,4 @@
+---
 name: Lint Code
 
 on: [push, pull_request]
@@ -21,9 +22,16 @@ jobs:
       - name: Bandit
         run: |
           pip3 install bandit
-        # [B101:assert_used] Use of assert detected. The enclosed code will be removed when compiling to optimised byte code.
-        # [B310:blacklist] Audit url open for permitted schemes. Allowing use of file:/ or custom schemes is often unexpected.
-        # [B404:blacklist] Consider possible security implications associated with subprocess module.
-        # [B603:subprocess_without_shell_equals_true] subprocess call - check for execution of untrusted input.
-        # [B607:start_process_with_partial_path] Starting a process with a partial executable path
-        bandit --skip B101,B310,B404,B603,B607 --recursive . --exclude ./deps/vulkan-headers/share/vulkan/registry
+          # [B101:assert_used] Use of assert detected. The enclosed code will be
+          #   removed when compiling to optimised byte code.
+          # [B310:blacklist] Audit url open for permitted schemes. Allowing use
+          #   of file:/ or custom schemes is often unexpected.
+          # [B404:blacklist] Consider possible security implications associated
+          #   with subprocess module.
+          # [B603:subprocess_without_shell_equals_true] subprocess call - check
+          #   for execution of untrusted input.
+          # [B607:start_process_with_partial_path] Starting a process with a
+          #   partial executable path
+          bandit --skip B101,B310,B404,B603,B607 --recursive . --exclude \
+          ./deps/vulkan-headers/share/vulkan/registry
+...

.github/workflows/test.yml

@@ -1,3 +1,4 @@
+---
 name: Test Libraries
 
 on: [push, pull_request]
@@ -12,3 +13,4 @@ jobs:
       - name: Run tests
         run: |
           ./build.py --target=test-deps
+...