add htmlcompressor 2.3.1

[hboutemy]

https://github.com/jvm-repo-rebuild/reproducible-central/blob/master/content/com/github/hazendaz/htmlcompressor/README.md

[github-actions]

• com.github.hazendaz:htmlcompressor 2.3.1

./rebuild.sh content/com/github/hazendaz/htmlcompressor/htmlcompressor-2.3.1.buildspec

version=2.3.1
ok=7
ko=1
ignored=0
koFiles="htmlcompressor-2.3.1.zip"
ignoredFiles=""
reference_java_version="25 (from MANIFEST.MF Build-Jdk-Spec)"
reference_os_name="Windows (from pom.properties newline)"
# diffoscope target/reference/com.github.hazendaz/htmlcompressor-2.3.1.zip target/htmlcompressor-2.3.1.zip
stabilize_ok=0
stabilize_ko=1
stabilize_ignored=0
stabilize_koFiles="htmlcompressor-2.3.1.zip.stabilized"
stabilize_ignoredFiles=""

🔍 diffoscope analysis uploaded to https://github.com/jvm-repo-rebuild/reproducible-central/actions/runs/19995603954

docker build -q -t ghcr.io/jvm-repo-rebuild/rb-ubuntu-jdk25-toolchains-25
	1:01.90 real,	0.18 user,	0.11 sys
docker build -q -t ghcr.io/jvm-repo-rebuild/rb-ubuntu-jdk25-toolchains-25-maven-3.9.9
	0:12.13 real,	0.08 user,	0.06 sys
docker build -q -t ghcr.io/jvm-repo-rebuild/rb-ubuntu-jdk25-toolchains-25-maven-3.9.9-runner
	0:10.72 real,	0.07 user,	0.08 sys
docker build -q -t ghcr.io/jvm-repo-rebuild/rb-ubuntu-jdk25-toolchains-25-maven-3.9.9-runner-utc-en_us-022
	0:12.84 real,	0.10 user,	0.05 sys
docker run --name rebuild-central --rm
	3:08.16 real,	0.02 user,	0.01 sys