fix: replace heredoc with printf in build script

The heredoc inside the YAML block scalar (|) broke YAML parsing because
the heredoc body lines (#!/bin/bash, exec lua...) were at column 0,
which YAML interpreted as top-level keys. The ':' in the exec line
triggered 'could not find expected ':'' parse errors.

Replace with printf to keep the entire build script as properly-indented
YAML block scalar content. This also fixes the mason UI crash where the
newline-containing error message triggered 'replacement string item
contains newlines' in nvim_buf_set_lines.

packages/tia-lsp/package.yaml

@@ -16,10 +16,7 @@ source:
       git clone --depth 1 --branch v{{version}} https://gitea.l-tech.rs/lazar/tia-lsp.git tia-lsp-src
       cp -r tia-lsp-src/src ./src
       mkdir -p bin
-      cat > bin/tia-lsp << 'EOF'
-#!/bin/bash
-exec lua "$(dirname "$0")/../src/main.lua" "$@"
-EOF
+      printf '#!/bin/bash\nexec lua "$(dirname "$0")/../src/main.lua" "$@"\n' > bin/tia-lsp
       chmod +x bin/tia-lsp
 
 bin: