Update dependencies used by the driver extractor (flathub#297)

* readme: minor formatting fix

* libarchive: configure with `--disable-dependency-tracking`

From the output of ./configure --help:

> Optional Features
> --disable-dependency-tracking  speeds up one-time build

When building a single driver version on an i5 3570K + 120 GB SSD, I
saw a decrease in the overall build time of ~4.6 seconds.

Before:

$ time make FB_ARGS='--user'
...
real    0m45,461s
user    0m1,018s
sys     0m0,416s

Now:

$ time make FB_ARGS='--user'
...
real    0m40,813s
user    0m0,998s
sys     0m0,425s

* libarchive: update to 3.7.5

* libzstd: update to 1.5.6

README.md

@@ -35,7 +35,7 @@ cd org.freedesktop.Platform.GL.nvidia
 echo 'DRIVER_VERSIONS="560.35.03"' >> versions.sh
 ```
 
-5\. Install the appropriate 1.6 Freedesktop Platform/SDK for your CPU architecture:
+**5\.** Install the appropriate 1.6 Freedesktop Platform/SDK for your CPU architecture:
 
 ```bash
 flatpak --user install --no-related flathub "org.freedesktop.Platform/$(flatpak --default-arch)/1.6"

org.freedesktop.Platform.GL.nvidia.json.in

@@ -37,24 +37,24 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": "https://github.com/facebook/zstd/releases/download/v1.5.4/zstd-1.5.4.tar.gz",
-                    "sha256": "0f470992aedad543126d06efab344dc5f3e171893810455787d38347343a4424"
+                    "url": "https://github.com/facebook/zstd/releases/download/v1.5.6/zstd-1.5.6.tar.gz",
+                    "sha256": "8c29e06cf42aacc1eafc4077ae2ec6c6fcb96a626157e0593d5e82a34fd403c1"
                 }
             ]
         },
         {
             "cleanup": ["/include", "/share"],
             "name": "libarchive",
-            "config-opts": [ "--disable-shared", "--enable-static", "--disable-xattr", "--disable-acl",
+            "config-opts": [ "--disable-dependency-tracking", "--disable-shared", "--enable-static", "--disable-xattr", "--disable-acl",
                              "--without-bz2lib", "--without-iconv", "--without-lz4", "--without-lzo2", "--without-nettle",
                              "--without-openssl", "--without-xml2", "--without-expat", "--disable-bsdcat", "--disable-bsdcpio",
                              "--disable-bsdtar", "--disable-bsdunzip", "--without-libb2", "--without-cng", "--without-mbedtls"
                            ],
             "sources": [
                 {
                     "type": "archive",
-                    "url": "https://www.libarchive.de/downloads/libarchive-3.7.4.tar.xz",
-                    "sha256": "f887755c434a736a609cbd28d87ddbfbe9d6a3bb5b703c22c02f6af80a802735"
+                    "url": "https://github.com/libarchive/libarchive/releases/download/v3.7.5/libarchive-3.7.5.tar.xz",
+                    "sha256": "ca74ff8f99dd40ab8a8274424d10a12a7ec3f4428dd35aee9fdda8bdb861b570"
                 }
             ]
         },