build(nix): add bear to dev shell

A useful addition to make sure is available, since we also make clangd
available through clang-tools. bear can generate the
`compile_commands.json` for clangd. For example with `make clean && bear
-- make -j$(nproc)`.

Signed-off-by: Thomas Mühlbacher <tmuehlbacher@posteo.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
index 6c379313..5222d655 100644
--- a/flake.nix
+++ b/flake.nix
@@ -174,6 +174,7 @@
             # development, and might need to be version matched with build
             # dependencies (e.g. clippy or rust-analyzer).
             packages = with pkgs; [
+              bear
               cargo-audit
               cargo-outdated
               clang-tools