[externals] update fmt, unordered_dense, httplib

fmt: 12.1.0
httplib: v0.27.0
unordered_dense: v4.8.0

Signed-off-by: crueter <crueter@eden-emu.dev>

cpmfile.json

@@ -25,9 +25,9 @@
     "fmt": {
         "repo": "fmtlib/fmt",
         "tag": "%VERSION%",
-        "hash": "c4ab814c20fbad7e3f0ae169125a4988a2795631194703251481dc36b18da65c886c4faa9acd046b0a295005217b3689eb0126108a9ba5aac2ca909aae263c2f",
+        "hash": "f0da82c545b01692e9fd30fdfb613dbb8dd9716983dcd0ff19ac2a8d36f74beb5540ef38072fdecc1e34191b3682a8542ecbf3a61ef287dbba0a2679d4e023f2",
         "version": "8",
-        "git_version": "12.0.0"
+        "git_version": "12.1.0"
     },
     "lz4": {
         "name": "lz4",

externals/cpmfile.json

@@ -32,8 +32,8 @@
     "httplib": {
         "repo": "yhirose/cpp-httplib",
         "tag": "v%VERSION%",
-        "hash": "b364500f76e2ecb0fe21b032d831272e3f1dfeea71af74e325f8fc4ce9dcdb3c941b97a5b422bdeafb9facd058597b90f8bfc284fb9afe3c33fefa15dd5a010b",
-        "git_version": "0.26.0",
+        "hash": "884d6be8209d8128af2b11c35d7fc592d8a236a65cdcd9b123a77aa73fbd0dbd03c1cbe17cf4dd92797b06d312c9476d59646b9034d8e559095852b021138acc",
+        "git_version": "0.27.0",
         "find_args": "MODULE GLOBAL",
         "patches": [
             "0001-mingw.patch"
@@ -93,9 +93,9 @@
         "package": "unordered_dense",
         "repo": "martinus/unordered_dense",
         "tag": "v%VERSION%",
-        "hash": "f9c819e28e1c1a387acfee09277d6af5e366597a0d39acf1c687acf0608a941ba966af8aaebdb8fba0126c7360269c4a51754ef4cab17c35c01a30215f953368",
+        "hash": "d86e6295b5670d4324a424c28ecd783ae7c8cd510e4eeb428f7c11455f21f174e706a6b898967c1fdeb0cb1dad17f06bb52504e29a17988934235199d559e7fc",
         "find_args": "CONFIG",
-        "git_version": "4.5.0"
+        "git_version": "4.8.0"
     },
     "mbedtls": {
         "package": "MbedTLS",