Merge #4065

4065: Disable auto-run of tvar-invariant-check r=yogeshsajanikar a=yogeshsajanikar

# Description

tvar-invariant checks are expected to run only in weekly builds. Currently, the tvar-invariant checks are always run as hydra collects the top level attributes and runs them. This comments makes tvar-invariant-checks part of nightly-checks.

To run the tvar-invariant-checks,

```bash
nix-build -A nightly-checks.tvar-invariant-checks.tests
```

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Co-authored-by: Yogesh Sajanikar <yogesh_sajanikar@yahoo.com>

default.nix

@@ -68,7 +68,7 @@ let
         haskellPackages.ouroboros-consensus-shelley-test.components.tests.test;
     };
 
-    tvar-invariant-checks = recurseIntoAttrs {
+    nightly-checks.tvar-invariant-checks = recurseIntoAttrs {
       inherit haskellPackagesWithTVarCheck;
       tests = collectChecks' haskellPackagesWithTVarCheck;
     };