Move Dockerfile to project root and remove tests/ directory

Author: pierres

.dockerignore

@@ -3,5 +3,4 @@
 /pkgstats
 /pkgstats-cli
 /*.out
-/tests/integration/Dockerfile
-/tests/build
+/Dockerfile

tests/integration/Dockerfile Dockerfiletests/integration/Dockerfile renamed to Dockerfile

@@ -172,4 +172,4 @@ The `pkgstats` project is structured as follows:
   - `system/`: Gathers system information like CPU architecture.
 - `main.go`: The main entry point of the application.
 - `justfile`: Contains the `just` commands for development and testing.
-- `tests/`: Contains the integration test Dockerfile.
+- `Dockerfile`: Integration test container used by `just test-integration`.

README.md

@@ -4,7 +4,6 @@ go 1.26
 
 require (
 	github.com/spf13/cobra v1.10.2
-	github.com/spf13/pflag v1.0.10
 	github.com/spf13/viper v1.21.0
 	golang.org/x/sys v0.41.0
 )
@@ -19,6 +18,7 @@ require (
 	github.com/sagikazarmark/locafero v0.12.0 // indirect
 	github.com/spf13/afero v1.15.0 // indirect
 	github.com/spf13/cast v1.10.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/text v0.34.0 // indirect

go.mod

@@ -46,7 +46,7 @@ test-os-detection: aarch64::test-os-detection arm::test-os-detection i686::test-
 # run integration tests with a mocked API server
 [group('test')]
 test-integration:
-    docker buildx build --pull . -f tests/integration/Dockerfile -t pkgstats-test-integration
+    docker buildx build --pull . -t pkgstats-test-integration
 
 # run all available tests
 [group('test')]