Exclude install-release tags from git describe

The install_release.sh script is updated one commit after the release
tag, which may be confusing.

For convenience, new lightweight tags have been added (for example
v2.5-install-release) to point to the commit where install_release.sh is
updated.

But these tags interfere with "git describe" to generate pretty
filenames when executing ./release.sh on a development branch, so ignore
them.

Before:

    release-v2.5-install-release-17-gc57a0512b

After:

    release-v2.5-18-gc57a0512b

Refs #4098 comment <#4098 (comment)>

release.mk

@@ -24,7 +24,7 @@ SERVER_BUILD_DIR := build-server
 WIN32_BUILD_DIR := build-win32
 WIN64_BUILD_DIR := build-win64
 
-VERSION := $(shell git describe --tags --always)
+VERSION := $(shell git describe --tags --exclude='*install-release' --always)
 
 DIST := dist
 WIN32_TARGET_DIR := scrcpy-win32-$(VERSION)