Allow lens ^>=5.3

Not particularly useful until `insert-ordered-containers` does so too,
see phadej/insert-ordered-containers#58

openapi3.cabal

@@ -88,7 +88,7 @@ library
     , hashable                  >=1.2.7.0  && <1.5
     , http-media                >=0.8.0.0  && <0.9
     , insert-ordered-containers >=0.2.3    && <0.3
-    , lens                      >=4.16.1   && <5.3
+    , lens                      >=4.16.1   && <5.4
     , optics-core               >=0.2      && <0.5
     , optics-th                 >=0.2      && <0.5
     , scientific                >=0.3.6.2  && <0.4