Update package version to 21.1.8

pkg.info

@@ -1,6 +1,6 @@
 name: libclc
 description: Open Source implementation of the library requirements of the OpenCL C programming language
-version: 21.1.7
+version: 21.1.8
 revision: 1
 url: https://libclc.llvm.org/
 license: NCSA OR MIT
@@ -17,4 +17,4 @@ downloads:
   - url: https://github.com/llvm/llvm-project/releases/download/llvmorg-${BPM_PKG_VERSION}/libclc-${BPM_PKG_VERSION}.src.tar.xz
     extract_to: ${BPM_SOURCE}
     extract_strip_components: 1
-    checksum: de1c8dbffdce898a4c5e70fb7f5aa6dea1e429f63471773da8cb3cdf9e945403
+    checksum: 6c2677362a53531c35edf482bdc9171ea0471ca0a1e9138ac9b5a1782925616f