minor space fix for VSCode toml formatting

Signed-off-by: Dmitry Savintsev <dsavints@gmail.com>

{{project-name}}-ebpf/rust-toolchain.toml

@@ -1,5 +1,5 @@
 [toolchain]
-channel="nightly"
+channel = "nightly"
 # The source code of rustc, provided by the rust-src component, is needed for
 # building eBPF programs.
 components = [ "rustc", "rust-std", "cargo", "rust-docs", "rustfmt", "clippy", "rust-src" ]