Update dependency jonahgeorge/jaeger-client-php to v1.5.1 (#800)

| datasource | package                       | from  | to    |
| ---------- | ----------------------------- | ----- | ----- |
| packagist  | jonahgeorge/jaeger-client-php | 1.5.0 | 1.5.1 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

example/php/jaeger/composer.json

@@ -1,7 +1,7 @@
 {
   "minimum-stability": "dev",
   "require": {
-    "jonahgeorge/jaeger-client-php": "1.5.0",
+    "jonahgeorge/jaeger-client-php": "1.5.1",
     "opentracing/opentracing": "1.0.2"
   }
 }