Move dependencies to stable version

gradle.properties

@@ -2,24 +2,24 @@ org.gradle.caching=true
 puppycrawlCheckstyleVersion=8.18
 group=org.ballerinalang
 version=0.5.3-SNAPSHOT
-ballerinaLangVersion=2.0.0-Preview8-SNAPSHOT
+ballerinaLangVersion=2.0.0-Preview8
 hikkariLibVersion=3.3.1
 hsqlDriverVersion=2.5.1
 
-stdlibIoVersion=0.5.4-SNAPSHOT
-stdlibStringUtilsVersion=0.5.4-SNAPSHOT
-stdlibRuntimeVersion=0.5.4-SNAPSHOT
-stdlibSystemVersion=0.6.4-SNAPSHOT
-stdlibTimeVersion=1.0.5-SNAPSHOT
-stdlibConfigVersion=1.0.4-SNAPSHOT
-stdlibLogVersion=1.0.4-SNAPSHOT
-stdlibFileVersion=0.6.2-SNAPSHOT
+stdlibIoVersion=0.5.4
+stdlibStringUtilsVersion=0.5.4
+stdlibRuntimeVersion=0.5.4
+stdlibSystemVersion=0.6.4
+stdlibTimeVersion=1.0.5
+stdlibConfigVersion=1.0.4
+stdlibLogVersion=1.0.4
+stdlibFileVersion=0.6.2
 
-stdlibTransactionVersion=1.0.3-SNAPSHOT
-stdlibTaskVersion=1.1.4-SNAPSHOT
-stdlibCryptoVersion=1.0.4-SNAPSHOT
-stdlibReflectVersion=0.5.4-SNAPSHOT
-stdlibMimeVersion=1.0.4-SNAPSHOT
-stdlibCacheVersion=2.0.4-SNAPSHOT
-stdlibAuthVersion=1.0.4-SNAPSHOT
-stdlibHttpVersion=1.0.4-SNAPSHOT
+stdlibTransactionVersion=1.0.3
+stdlibTaskVersion=1.1.4
+stdlibCryptoVersion=1.0.4
+stdlibReflectVersion=0.5.4
+stdlibMimeVersion=1.0.4
+stdlibCacheVersion=2.0.4
+stdlibAuthVersion=1.0.4
+stdlibHttpVersion=1.0.4