why-catch.md: Add JetBrains survey link

kassane · Sep 27, 2023 · 766541d · 766541d
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diff --git a/docs/why-catch.md b/docs/why-catch.md
@@ -41,8 +41,8 @@ So what does Catch2 bring to the party that differentiates it from these? Apart
 
 ## Who else is using Catch2?
 
-A whole lot of people. According to the 2021 JetBrains C++ ecosystem survey,
-about 11% of C++ programmers use Catch2 for unit testing, making it the
+A whole lot of people. According to [the 2022 JetBrains C++ ecosystem survey](https://www.jetbrains.com/lp/devecosystem-2022/cpp/#Which-unit-testing-frameworks-do-you-regularly-use),
+about 12% of C++ programmers use Catch2 for unit testing, making it the
 second most popular unit testing framework.
 
 You can also take a look at the (incomplete) list of [open source projects](opensource-users.md#top)