Optimise the release build for size

Signed-off-by: Max Dymond <max.dymond@microsoft.com>

Author: Max Dymond

CHANGELOG.md

@@ -19,6 +19,7 @@ Status: Available for use
 - #62: Use shell_words to split the outer shell so that more complex outer shells can be used.
 - Load values from files relative to the floki config file, not from the
   current working directory.
+- Optimise the release build for size
 
 ## [1.2.0] - 2023-07-07
 

Cargo.toml

@@ -35,3 +35,9 @@ shell-words = "1.1.0"
 
 [dev-dependencies]
 tempfile = "3.6.0"
+
+[profile.release]
+strip = true  # Automatically strip symbols from the binary.
+opt-level = "z"  # Optimize for size.
+lto = true
+codegen-units = 1