chore: fixup test sizes to resolve warnings (#911)

lib/tests/base64_tests.bzl

diff --git a/lib/tests/base64_tests.bzl b/lib/tests/base64_tests.bzl
index dc827be..73b52c8 100644
--- a/lib/tests/base64_tests.bzl
+++ b/lib/tests/base64_tests.bzl
@@ -1,5 +1,6 @@
 """unit tests for base64"""
 
+load("@bazel_skylib//lib:partial.bzl", "partial")
 load("@bazel_skylib//lib:unittest.bzl", "asserts", "unittest")
 load("//lib/private:base64.bzl", "decode", "encode")
 load("//lib/private:strings.bzl", "INT_TO_CHAR")
@@ -45,5 +46,5 @@
 def base64_test_suite():
     unittest.suite(
         "base64_tests",
-        base64_test,
+        partial.make(base64_test, timeout = "short"),
     )

lib/tests/lists_test.bzl

diff --git a/lib/tests/lists_test.bzl b/lib/tests/lists_test.bzl
index 82c86b2..234edb6 100644
--- a/lib/tests/lists_test.bzl
+++ b/lib/tests/lists_test.bzl
@@ -1,5 +1,6 @@
 """unit tests for lists"""
 
+load("@bazel_skylib//lib:partial.bzl", "partial")
 load("@bazel_skylib//lib:unittest.bzl", "asserts", "unittest")
 load("//lib/private:lists.bzl", "every", "filter", "find", "map", "once", "pick", "some", "unique")
 
@@ -82,12 +83,12 @@
 def lists_test_suite():
     unittest.suite(
         "lists_tests",
-        every_test,
-        filter_test,
-        find_test,
-        map_test,
-        once_test,
-        pick_test,
-        some_test,
-        unique_test,
+        partial.make(every_test, timeout = "short"),
+        partial.make(filter_test, timeout = "short"),
+        partial.make(find_test, timeout = "short"),
+        partial.make(map_test, timeout = "short"),
+        partial.make(once_test, timeout = "short"),
+        partial.make(pick_test, timeout = "short"),
+        partial.make(some_test, timeout = "short"),
+        partial.make(unique_test, timeout = "short"),
     )

lib/tests/strings_tests.bzl

diff --git a/lib/tests/strings_tests.bzl b/lib/tests/strings_tests.bzl
index 1bd339a..a156dde 100644
--- a/lib/tests/strings_tests.bzl
+++ b/lib/tests/strings_tests.bzl
@@ -1,5 +1,6 @@
 """unit tests for string"""
 
+load("@bazel_skylib//lib:partial.bzl", "partial")
 load("@bazel_skylib//lib:unittest.bzl", "asserts", "unittest")
 load("//lib/private:strings.bzl", "chr", "hex", "ord")
 
@@ -58,7 +59,7 @@
 def strings_test_suite():
     unittest.suite(
         "strings_tests",
-        ord_test,
-        chr_test,
-        hex_test,
+        partial.make(ord_test, timeout = "short"),
+        partial.make(chr_test, timeout = "short"),
+        partial.make(hex_test, timeout = "short"),
     )