Invalidate manifests.txt after updating it

This ensures that the file is *really* up to date.

Author: Noratrieb

src/main.rs

@@ -258,6 +258,7 @@ impl Context {
 
         self.invalidate_releases()?;
         self.update_manifests_txt()?;
+        self.invalidate_manifests_txt()?;
 
         // Clean up after ourselves to avoid leaving gigabytes of artifacts
         // around.
@@ -604,6 +605,15 @@ impl Context {
         Ok(())
     }
 
+    fn invalidate_manifests_txt(&self) -> Result<(), Error> {
+        let paths = ["manifests.txt".into()];
+
+        self.invalidate_cloudfront(&self.config.cloudfront_static_id, &paths)?;
+        self.invalidate_fastly(&paths)?;
+
+        Ok(())
+    }
+
     fn invalidate_cloudfront(&self, distribution_id: &str, paths: &[String]) -> Result<(), Error> {
         if self.config.skip_cloudfront_invalidations {
             println!();