feat: add scaletest Runner for dynamicparameters load gen (#19890)

relates to https://github.com/coder/internal/issues/912

Adds a new scaletest Runner to generate dynamic parameters load.

A later PR will add the CLI command, including creating the template & version.

.github/workflows/typos.toml

@@ -1,5 +1,6 @@
 [default]
 extend-ignore-identifiers-re = ["gho_.*"]
+extend-ignore-re = ["(#|//)\\s*spellchecker:ignore-next-line\\n.*"]
 
 [default.extend-identifiers]
 alog = "alog"