Enable strict concurrency (#47)

### Motivation: Catch potential data races at build time. ### Modifications: - Enabled strict concurrency checking in the Package.swift and removed it from the CI flags. ### Result: Fewer potential data races can sneak in. ### Test Plan Ran tests locally, did not see any concurrency warnings or errors.

Author: czechboy0

.github/workflows/main.yml

@@ -11,8 +11,8 @@ jobs:
  name: Unit tests
  uses: ./.github/workflows/unit_tests.yml
  with:
- linux_5_9_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -strict-concurrency=complete"
- linux_5_10_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -strict-concurrency=complete"
+ linux_5_9_arguments_override: "--explicit-target-dependency-import-check error"
+ linux_5_10_arguments_override: "--explicit-target-dependency-import-check error"
  linux_6_0_arguments_override: "--explicit-target-dependency-import-check error"
  linux_nightly_6_0_arguments_override: "--explicit-target-dependency-import-check error"
  linux_nightly_main_arguments_override: "--explicit-target-dependency-import-check error"

.github/workflows/pull_request.yml

@@ -15,8 +15,8 @@ jobs:
  name: Unit tests
  uses: ./.github/workflows/unit_tests.yml
  with:
- linux_5_9_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -strict-concurrency=complete"
- linux_5_10_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -strict-concurrency=complete"
+ linux_5_9_arguments_override: "--explicit-target-dependency-import-check error"
+ linux_5_10_arguments_override: "--explicit-target-dependency-import-check error"
  linux_6_0_arguments_override: "--explicit-target-dependency-import-check error"
  linux_nightly_6_0_arguments_override: "--explicit-target-dependency-import-check error"
  linux_nightly_main_arguments_override: "--explicit-target-dependency-import-check error"

.gitignore

@@ -9,3 +9,4 @@ DerivedData/
 .netrc
 Package.resolved
 .*.sw?
+.vscode

Package.swift

@@ -57,3 +57,9 @@ let package = Package(
  ),
  ]
 )
+
+for target in package.targets {
+ var settings = target.swiftSettings ?? []
+ settings.append(.enableExperimentalFeature("StrictConcurrency=complete"))
+ target.swiftSettings = settings
+}