Release SkyWalking PHP Agent 0.6.0 (#89)

diff --git a/Cargo.lock b/Cargo.lock
index c123d6f..d5efc3b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2075,7 +2075,7 @@
 
 [[package]]
 name = "skywalking-php"
-version = "0.6.0-dev"
+version = "0.6.0"
 dependencies = [
  "anyhow",
  "axum",
diff --git a/Cargo.toml b/Cargo.toml
index 771a788..9aeae1a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@
 
 [package]
 name = "skywalking-php"
-version = "0.6.0-dev"
+version = "0.6.0"
 authors = ["Apache Software Foundation", "jmjoy <jmjoy@apache.org>", "Yanlong He <heyanlong@apache.org>"]
 description = "Apache SkyWalking PHP Agent."
 edition = "2021"
diff --git a/dist-material/LICENSE b/dist-material/LICENSE
index 70b7c5a..a1b02f4 100644
--- a/dist-material/LICENSE
+++ b/dist-material/LICENSE
@@ -223,7 +223,7 @@
     https://crates.io/crates/prost-types/0.11.9 0.11.9 Apache-2.0
     https://crates.io/crates/scripts/0.0.0 0.0.0 Apache-2.0
     https://crates.io/crates/skywalking/0.8.0 0.8.0 Apache-2.0
-    https://crates.io/crates/skywalking-php/0.6.0-dev 0.6.0-dev Apache-2.0
+    https://crates.io/crates/skywalking-php/0.6.0 0.6.0 Apache-2.0
     https://crates.io/crates/sync_wrapper/0.1.2 0.1.2 Apache-2.0
 
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