refactor: Add simple clang-tidy readability checks (#6556)

This change enables the following clang-tidy checks:
-  readability-avoid-nested-conditional-operator,
-  readability-avoid-return-with-void-value,
-  readability-braces-around-statements,
-  readability-const-return-type,
-  readability-container-contains,
-  readability-container-size-empty,
-  readability-else-after-return,
-  readability-make-member-function-const,
-  readability-redundant-casting,
-  readability-redundant-inline-specifier,
-  readability-redundant-member-init,
-  readability-redundant-string-init,
-  readability-reference-to-constructed-temporary,
-  readability-static-definition

src/test/csf/BasicNetwork_test.cpp

@@ -33,8 +33,10 @@ public:
             if (id == 0)
             {
                 for (auto const link : net.links(this))
+                {
                     net.send(
                         this, link.target, [&, to = link.target] { to->receive(net, this, 1); });
+                }
             }
             else
             {
@@ -51,9 +53,11 @@ public:
             if (m < 5)
             {
                 for (auto const link : net.links(this))
+                {
                     net.send(this, link.target, [&, mm = m, to = link.target] {
                         to->receive(net, this, mm);
                     });
+                }
             }
         }
     };