Ensure all returned string values are actually strings (#37)

* Update DBFTables.jl

* fix ci

Author: asinghvi17

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
-      - uses: actions/cache@v1
+      - uses: actions/cache@v4
         env:
           cache-name: cache-artifacts
         with:

src/DBFTables.jl

@@ -143,7 +143,7 @@ julia_value(o::FieldDescriptor, s::AbstractString) = julia_value(o.type, Val(o.d
 
 function julia_value_string(s::AbstractString)
     out = strip(x -> isspace(x) || x == '\0', s)
-    isempty(out) ? missing : out
+    isempty(out) ? missing : string(out)
 end
 
 julia_value(::Type{String}, ::Val{'C'}, s::AbstractString) = julia_value_string(s)