Add ppc64le binaries (#3067)

Little-endian 64 bit PowerPC (ppc64le) is the "normal" PowerPC
architecture supported by standard Linux distributions (RedHat, SUSE,
Ubuntu, etc.).

Add support for this architecture in the install script, and add binary
builds for it as well.

.goreleaser.yml

@@ -73,6 +73,7 @@ builds:
       - arm
       - arm64
       - loong64
+      - ppc64le
     goarm:
       - 5
       - 6

install

@@ -176,6 +176,7 @@ case "$archi" in
   Linux\ armv8*)      download fzf-$version-linux_arm64.tar.gz   ;;
   Linux\ aarch64*)    download fzf-$version-linux_arm64.tar.gz   ;;
   Linux\ loongarch64) download fzf-$version-linux_loong64.tar.gz ;;
+  Linux\ ppc64le)     download fzf-$version-linux_ppc64le.tar.gz ;;
   Linux\ *64)         download fzf-$version-linux_amd64.tar.gz   ;;
   FreeBSD\ *64)       download fzf-$version-freebsd_amd64.tar.gz ;;
   OpenBSD\ *64)       download fzf-$version-openbsd_amd64.tar.gz ;;