Refactor exec calls to use InjectedExecOps

github_release.gradle

@@ -1,9 +1,15 @@
+interface InjectedExecOps {
+    @Inject //@javax.inject.Inject
+    ExecOperations getExecOps()
+}
 private String getCurrentVersionChangelog() {
     OutputStream changelogDataOS = new ByteArrayOutputStream()
-    exec {
+
+    def injected = project.objects.newInstance(InjectedExecOps)
+    injected.execOps.exec {
         commandLine 'chmod', "+x", './changelog_parser.sh'
     }
-    exec {
+    injected.execOps.exec {
         standardOutput = changelogDataOS
         commandLine './changelog_parser.sh', "${project.version}", 'CHANGELOG.md'
     }
@@ -11,6 +17,7 @@ private String getCurrentVersionChangelog() {
     return changelogDataOS.toString().trim()
 }
 
+
 def githubTokenVariableName = "GITHUB_RELEASE_TOKEN"
 def githubTokenVariableFromEnv = System.getenv(githubTokenVariableName)
 
@@ -25,8 +32,6 @@ if (secretFile.exists() || project.hasProperty(githubTokenVariableName) || (gith
     githubRelease {
         token githubReleaseToken
 
-        releaseAssets.from('bot/build/distributions')
-
         owner = "InsanusMokrassar"
         repo = "PlaguBot"