chore: fix sandbox tests

Author: sureshg

README.md

@@ -18,19 +18,27 @@ $ sdk i java 21.0.4-zulu
 $ sdk u java 21.0.4-zulu
 ```
 
-### Build & Test
+### Build & Testing
 
-```bash
-$ ./gradlew build
+  ```bash
+  $ ./gradlew build
+  ```
 
-# To test, run the sample sandbox project by changing the version in `settings.gradle.kts`
-$ ./gradlew publishToMavenLocal
-$ ./gradlew -p sandbox :build
-```
+For testing, a separate [sandbox project](/sandbox) is available with the plugin applied in `settings.gradle.kts`.
+First publish the plugin to the local maven repository and then run the sandbox project by setting the `test.version` in
+sandbox [gradle.properties](/sandbox/gradle.properties).
+
+   ```bash
+   $ ./gradlew publishToMavenLocal
+   # Set the test.version in sandbox/gradle.properties
+   $ ./gradlew -p sandbox :build
+   $ ./gradlew -p sandbox :dependencyUpdates
+   ```
 
 ### Publishing
 
-Push a new tag to trigger the [release](https://repo1.maven.org/maven2/dev/suresh/build/) workflow.
+Push a new tag to trigger the release workflow and publish the plugin
+to [maven central](https://repo1.maven.org/maven2/dev/suresh/build/). That's it!
 
    ```bash
    $ git tag -am "v1.0.0 release" v1.0.0

sandbox/gradle.properties

@@ -18,4 +18,7 @@ kotlin.jvm.target.validation.mode=warning
 semver.project.tagPrefix=v
 semver.checkClean=false
 semver.commitsMaxCount=100
-# semver.logOnlyOnRootProject=true
+# semver.logOnlyOnRootProject=true
+
+# Sandbox Testing
+test.version=0.5.0

sandbox/gradle/libs.versions.toml

@@ -4,7 +4,7 @@ kotlin                         = "2.1.0-Beta1"
 kotlin-ksp                     = "2.1.0-Beta1-1.0.25"
 kotlin-jvmtarget               = "21"
 kotlin-dsl-jvmtarget           = "21"
-kotlin-api-version             = "2.1"
+kotlin-api-version             = "1.9"
 kotlin-lang-version            = "2.1"
 gradle                         = "8.10.2"
 java-vendor                    = "Oracle"

sandbox/settings.gradle.kts

@@ -10,7 +10,7 @@ pluginManagement {
   resolutionStrategy {
     eachPlugin {
       if (requested.id.id.startsWith("settings.")) {
-        useModule("dev.suresh.build:plugins:0.5.0")
+        useModule("dev.suresh.build:plugins:${extra["test.version"]}")
       }
     }
   }
@@ -26,7 +26,7 @@ dependencyResolutionManagement {
 
   versionCatalogs {
     create("mylibs") {
-      from("dev.suresh.build:catalog:0.5.0")
+      from("dev.suresh.build:catalog:${extra["test.version"]}")
       version("java", "21")
     }
   }